Water Temperature of the St. Lawrence River in Wellesley Island, NY
Current Water Temperature
Measurement Time: Sunday, November 9, 2025, 1:54 PM EST
Temperature Locations
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Local Points of Interest
Coast Guard Station Alexandria Bay; Keewaydin State ParkSponsored Content
Station Name: Alexandria Bay
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 240 feet / 73 meters
Sensor Depth: -1.8 feet / -0.6 meters
Nearest Address:
45898 Hopewell Hall Rd
Wellesley Island, NY 13640
Jefferson County
GPS Coordinates: 44.331110, -75.934528
Nearby Water Temperatures
St. Lawrence River, Ogdensburg, NY (33.6 mi)Independence River, Donnattsburg, NY (50.2 mi)
Oswego River, Oswego, NY (67.1 mi)
Buck Creek, Inlet, NY (72.6 mi)
Lake Ontario, Rochester, NY (87.9 mi)
Skaneateles Lake, Skaneateles, NY (98.9 mi)
Irondequoit Creek, Penfield, NY (113.6 mi)
Allen Creek, Brighton, NY (115.0 mi)
Northrup Creek, North Greece, NY (116.9 mi)
Genesee River, Rochester, NY (117.5 mi)
Erie Canal, Rochester, NY (119.5 mi)
Sandy Creek, North Hamlin, NY (120.2 mi)
Mohawk River, Fonda, NY (123.3 mi)
Lake Champlain, Port Henry, NY (124.4 mi)
Schoharie Creek, Fort Hunter, NY (126.9 mi)
Weather for Wellesley Island, New York
Current Weather

Humidity: 88%
Feels Like: 20.1°F
Wind: NE 18.6 mph
Wind Gusts: 24.6 mph
Precipitation: 0.01 in
Cloud Cover: 0%
Visibility: 1 mi
UV Index: 0.3
Five Day Weather Forecast

Sun
H: 33°F
L: 30°F

Mon
H: 31°F
L: 26°F

Tue
H: 30°F
L: 23°F

Wed
H: 39°F
L: 31°F

Thu
H: 39°F
L: 35°F
Air Quality
Nitrogen Dioxide: 6.35 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 70 μg/m3
Astronomical
Sun Transit: 11:47 AM
Sunset: 4:43 PM
Daylight: 9 hrs 51 mins
Moon Transit: 3:36 AM
Moonset: 11:55 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.1%
Best Times for Fishing or Hunting
Major Periods
3:06 AM - 5:36 AM5:34 PM - 8:04 PM
Minor Periods
7:55 PM - 9:25 PM11:25 AM - 12:55 AM
Action Rating: 2 out of 5
special weather statement in effect
Service Notice – October 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) a new Coastal Flooding Statement has been created and could be issued for the same locations as the Coastal Flooding Warning, 3) more adjustments to the locations used for the coastal flooding alerts, 4) new Public locations around Regina, Moose Jaw and Saskatoon in Saskatchewan, 5) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 6) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – octobre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) un nouveau bulletin de submersion côtière a été créé et pourra être émis pour les mêmes emplacements que l’avertissement de submersion côtière, 3) d’autres ajustements aux emplacements utilisés pour les alertes d’inondation côtière, 4) de nouveaux emplacements publics autour de Regina, Moose Jaw et Saskatoon, en Saskatchewan, 5) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 6) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/
Effective: Sun November 9, 2025, 1:56 AM
Expires: Sun November 9, 2025, 5:56 PM
Accumulating snow likely today. What: Snowfall amounts of 5 to 15 cm. Risk of freezing rain and ice pellets. When: This morning through tonight. Additional information: Snow may mix with ice pellets or freezing rain late this afternoon and this evening. For areas that receive a wintry mix, snowfall accumulations may be reduced. There remains uncertainty with respect to the track of this weather system, and as such forecast snowfall amounts may change. Snowfall warnings may be required. Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
special weather statement in effect
Service Notice – October 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) a new Coastal Flooding Statement has been created and could be issued for the same locations as the Coastal Flooding Warning, 3) more adjustments to the locations used for the coastal flooding alerts, 4) new Public locations around Regina, Moose Jaw and Saskatoon in Saskatchewan, 5) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 6) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – octobre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) un nouveau bulletin de submersion côtière a été créé et pourra être émis pour les mêmes emplacements que l’avertissement de submersion côtière, 3) d’autres ajustements aux emplacements utilisés pour les alertes d’inondation côtière, 4) de nouveaux emplacements publics autour de Regina, Moose Jaw et Saskatoon, en Saskatchewan, 5) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 6) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/
Effective: Sat November 8, 2025, 9:31 PM
Expires: Sun November 9, 2025, 1:31 PM
Accumulating snow likely on Sunday. What: Snowfall amounts of 5 to 15 cm. Risk of freezing rain or ice pellets. When: Beginning Sunday morning and continuing into Sunday night. Additional information: A low pressure system will bring snowfall to parts of southern Ontario on Sunday. Areas near the St. Lawrence River may see snow mix with ice pellets or freezing rain at times Sunday evening. Confidence remains low with respect to the strength and track of this weather system, and as such the areas affected and snowfall amounts may change. Snowfall warnings may be required. Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
special weather statement in effect
Service Notice – October 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) a new Coastal Flooding Statement has been created and could be issued for the same locations as the Coastal Flooding Warning, 3) more adjustments to the locations used for the coastal flooding alerts, 4) new Public locations around Regina, Moose Jaw and Saskatoon in Saskatchewan, 5) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 6) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – octobre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) un nouveau bulletin de submersion côtière a été créé et pourra être émis pour les mêmes emplacements que l’avertissement de submersion côtière, 3) d’autres ajustements aux emplacements utilisés pour les alertes d’inondation côtière, 4) de nouveaux emplacements publics autour de Regina, Moose Jaw et Saskatoon, en Saskatchewan, 5) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 6) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/
Effective: Sun November 9, 2025, 5:18 AM
Expires: Sun November 9, 2025, 9:18 PM
Accumulating snow likely today. What: Snowfall amounts of 5 to 10 cm. Risk of freezing rain and ice pellets. When: This morning through tonight. Additional information: Snow may mix with ice pellets or freezing rain late this afternoon and tonight. There remains uncertainty with respect to the track of this weather system, and as such forecast snowfall amounts may change. Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
freezing rain warning in effect
Service Notice – October 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) a new Coastal Flooding Statement has been created and could be issued for the same locations as the Coastal Flooding Warning, 3) more adjustments to the locations used for the coastal flooding alerts, 4) new Public locations around Regina, Moose Jaw and Saskatoon in Saskatchewan, 5) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 6) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – octobre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) un nouveau bulletin de submersion côtière a été créé et pourra être émis pour les mêmes emplacements que l’avertissement de submersion côtière, 3) d’autres ajustements aux emplacements utilisés pour les alertes d’inondation côtière, 4) de nouveaux emplacements publics autour de Regina, Moose Jaw et Saskatoon, en Saskatchewan, 5) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 6) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/
Effective: Sun November 9, 2025, 10:51 AM
Expires: Mon November 10, 2025, 2:51 AM
Freezing rain likely late this afternoon and tonight. What: Threat of freezing rain and ice pellets. Ice accretion of 1 to 2 mm. Snowfall amounts of 5 to 10 cm. When: This afternoon and tapering off overnight. Additional information: Snow is expected to become mixed with ice pellets and freezing rain late this afternoon and tonight. Uncertainty remains high with the exact track of the weather system. As a result, confidence in snowfall and freezing rain amounts is lower than normal. Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays. ### Roads and walkways will likely become icy and slippery. Icy surfaces could be difficult to detect. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
snowfall warning in effect
Service Notice – October 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) a new Coastal Flooding Statement has been created and could be issued for the same locations as the Coastal Flooding Warning, 3) more adjustments to the locations used for the coastal flooding alerts, 4) new Public locations around Regina, Moose Jaw and Saskatoon in Saskatchewan, 5) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 6) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – octobre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) un nouveau bulletin de submersion côtière a été créé et pourra être émis pour les mêmes emplacements que l’avertissement de submersion côtière, 3) d’autres ajustements aux emplacements utilisés pour les alertes d’inondation côtière, 4) de nouveaux emplacements publics autour de Regina, Moose Jaw et Saskatoon, en Saskatchewan, 5) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 6) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/
Effective: Sun November 9, 2025, 1:38 AM
Expires: Sun November 9, 2025, 5:38 PM
Significant snowfall expected today. What: Snowfall amounts of 10 to 20 cm. When: Late this morning through tonight. Additional information: Snow may mix with ice pellets or freezing rain this evening, particularly for areas to the south and east of Ottawa. For areas that receive a wintry mix, snowfall accumulations may be reduced. ### Travel will likely be challenging. Visibility will likely be reduced at times. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
Allow extra time for travel.
snowfall warning in effect
Service Notice – October 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) a new Coastal Flooding Statement has been created and could be issued for the same locations as the Coastal Flooding Warning, 3) more adjustments to the locations used for the coastal flooding alerts, 4) new Public locations around Regina, Moose Jaw and Saskatoon in Saskatchewan, 5) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 6) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – octobre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) un nouveau bulletin de submersion côtière a été créé et pourra être émis pour les mêmes emplacements que l’avertissement de submersion côtière, 3) d’autres ajustements aux emplacements utilisés pour les alertes d’inondation côtière, 4) de nouveaux emplacements publics autour de Regina, Moose Jaw et Saskatoon, en Saskatchewan, 5) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 6) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/
Effective: Sat November 8, 2025, 9:27 PM
Expires: Sun November 9, 2025, 1:27 PM
Significant snowfall expected Sunday. What: Snowfall amounts of 10 to 20 cm. When: Beginning Sunday morning and continuing into Sunday night. Additional information: A low pressure system will bring snowfall to parts of southern Ontario on Sunday. Areas near the St. Lawrence River may see snow mix with ice pellets or freezing rain at times Sunday evening, leading to reduced snowfall amounts in that area. Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays. ### Visibility will likely be reduced at times. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
Weather Forecast
Average Temperature: 31.8°F
Average Humidity: 87%
Wind: 18.6 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 6.64 μg/m3
Sulphur Dioxide: 2.49 μg/m3
Ozone: 60 μg/m3
Astronomical
Sun Transit: 11:47 AM
Sunset: 4:43 PM
Daylight: 9 hrs 51 mins
Moon Transit: 3:36 AM
Moonset: 11:55 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.1%
Best Times for Fishing or Hunting
Major Periods
3:06 AM - 5:36 AM5:34 PM - 8:04 PM
Minor Periods
7:55 PM - 9:25 PM11:25 AM - 12:55 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 29.1°F
Average Humidity: 86%
Wind: 9.8 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 3.4 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 71 μg/m3
Astronomical
Sun Transit: 11:47 AM
Sunset: 4:42 PM
Daylight: 9 hrs 48 mins
Moon Transit: 4:37 AM
Moonset: 12:36 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.0%
Best Times for Fishing or Hunting
Major Periods
4:07 AM - 6:37 AM6:32 PM - 9:02 PM
Minor Periods
9:12 PM - 10:42 PM12:06 AM - 1:36 PM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 26.6°F
Average Humidity: 77%
Wind: 15 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 2.26 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 72.4 μg/m3
Astronomical
Sun Transit: 11:47 AM
Sunset: 4:41 PM
Daylight: 9 hrs 46 mins
Moon Transit: 5:32 AM
Moonset: 1:07 PM
Moon Phase: Waning Gibbous
Moon Illumination: 57.1%
Best Times for Fishing or Hunting
Major Periods
5:02 AM - 7:32 AM7:23 PM - 9:53 PM
Minor Periods
10:28 PM - 11:58 PM12:37 AM - 2:07 PM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 36.4°F
Average Humidity: 93%
Wind: 16.1 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 7.31 μg/m3
Sulphur Dioxide: 2.08 μg/m3
Ozone: 59.8 μg/m3
Astronomical
Sun Transit: 11:47 AM
Sunset: 4:40 PM
Daylight: 9 hrs 43 mins
Moon Transit: 6:21 AM
Moonset: 1:30 PM
Moon Phase: Last Quarter
Moon Illumination: 45.8%
Best Times for Fishing or Hunting
Major Periods
5:51 AM - 8:21 AM8:10 PM - 10:40 PM
Minor Periods
12:00 AM - 12:00 AM1:00 PM - 2:30 PM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 37.5°F
Average Humidity: 88%
Wind: 16.1 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 9.87 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 41.54 μg/m3
Astronomical
Sun Transit: 11:48 AM
Sunset: 4:39 PM
Daylight: 9 hrs 41 mins
Moon Transit: 7:06 AM
Moonset: 1:50 PM
Moon Phase: Last Quarter
Moon Illumination: 34.7%
Best Times for Fishing or Hunting
Major Periods
6:36 AM - 9:06 AM8:53 PM - 11:23 PM
Minor Periods
1:20 PM - 2:50 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
