Water Temperature of the St. Lawrence River in Wellesley Island, NY
Current Water Temperature
41.2°F
Measurement Time: Saturday, April 19, 2025, 8:24 PM EDT
Temperature Locations
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Local Points of Interest
Coast Guard Station Alexandria Bay; Keewaydin State ParkSponsored Content
St. Lawrence River
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
58.1°F

Conditions: Overcast
Humidity: 80%
Feels Like: 55.1°F
Wind: W 14.5 mph
Wind Gusts: 23.1 mph
Humidity: 80%
Feels Like: 55.1°F
Wind: W 14.5 mph
Wind Gusts: 23.1 mph
Pressure: 29.91 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0
Five Day Weather Forecast

Sat
H: 60°F
L: 46°F

Sun
H: 49°F
L: 34°F

Mon
H: 50°F
L: 30°F

Tue
H: 46°F
L: 42°F

Wed
H: 50°F
L: 41°F
Air Quality
AQI:
1 - Good
PM2.5:
1.3 μg/m3
PM10:
1.67 μg/m3
Carbon Monoxide: 351.5 μg/m3
Nitrogen Dioxide: 2.41 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 86 μg/m3
Nitrogen Dioxide: 2.41 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 86 μg/m3
Astronomical
Sunrise: 6:13 AM
Sun Transit: 1:02 PM
Sunset: 7:54 PM
Daylight: 13 hrs 41 mins
Sun Transit: 1:02 PM
Sunset: 7:54 PM
Daylight: 13 hrs 41 mins
Moonrise: 1:58 AM
Moon Transit: 5:58 AM
Moonset: 10:02 AM
Moon Phase: Last Quarter
Moon Illumination: 49.0%
Moon Transit: 5:58 AM
Moonset: 10:02 AM
Moon Phase: Last Quarter
Moon Illumination: 49.0%
Best Times for Fishing or Hunting
Major Periods
5:28 AM - 7:58 AM7:52 PM - 10:22 PM
Minor Periods
9:32 AM - 11:02 AM1:28 AM - 2:58 AM
Action Rating: 3 out of 5
Saturday, April 19, 2025
Weather Forecast
Conditions: Patchy rain nearby
Average Temperature: 51.7°F
Average Humidity: 86%
Average Temperature: 51.7°F
Average Humidity: 86%
Chance of Rain: 88%
Wind: 18.3 mph
UV Index: 0.9
Wind: 18.3 mph
UV Index: 0.9
Air Quality
AQI:
1 - Good
PM2.5:
12.85 μg/m3
PM10:
13.22 μg/m3
Carbon Monoxide: 371.26 μg/m3
Nitrogen Dioxide: 7.23 μg/m3
Sulphur Dioxide: 3.19 μg/m3
Ozone: 93.36 μg/m3
Nitrogen Dioxide: 7.23 μg/m3
Sulphur Dioxide: 3.19 μg/m3
Ozone: 93.36 μg/m3
Astronomical
Sunrise: 6:13 AM
Sun Transit: 1:02 PM
Sunset: 7:54 PM
Daylight: 13 hrs 41 mins
Sun Transit: 1:02 PM
Sunset: 7:54 PM
Daylight: 13 hrs 41 mins
Moonrise: 1:58 AM
Moon Transit: 5:58 AM
Moonset: 10:02 AM
Moon Phase: Last Quarter
Moon Illumination: 49.0%
Moon Transit: 5:58 AM
Moonset: 10:02 AM
Moon Phase: Last Quarter
Moon Illumination: 49.0%
Best Times for Fishing or Hunting
Major Periods
5:28 AM - 7:58 AM7:52 PM - 10:22 PM
Minor Periods
9:32 AM - 11:02 AM1:28 AM - 2:58 AM
Action Rating: 3 out of 5
Sunday, April 20, 2025
Weather Forecast
Conditions: Partly Cloudy
Average Temperature: 42.7°F
Average Humidity: 69%
Average Temperature: 42.7°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 14.1 mph
UV Index: 1.5
Wind: 14.1 mph
UV Index: 1.5
Air Quality
AQI:
1 - Good
PM2.5:
2.74 μg/m3
PM10:
3.91 μg/m3
Carbon Monoxide: 326.78 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 85.32 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 85.32 μg/m3
Astronomical
Sunrise: 6:11 AM
Sun Transit: 1:02 PM
Sunset: 7:55 PM
Daylight: 13 hrs 43 mins
Sun Transit: 1:02 PM
Sunset: 7:55 PM
Daylight: 13 hrs 43 mins
Moonrise: 2:41 AM
Moon Transit: 6:52 AM
Moonset: 11:09 AM
Moon Phase: Last Quarter
Moon Illumination: 37.8%
Moon Transit: 6:52 AM
Moonset: 11:09 AM
Moon Phase: Last Quarter
Moon Illumination: 37.8%
Best Times for Fishing or Hunting
Major Periods
6:22 AM - 8:52 AM8:45 PM - 11:15 PM
Minor Periods
10:39 AM - 12:09 AM2:11 AM - 3:41 AM
Action Rating: 3 out of 5
Monday, April 21, 2025
Weather Forecast
Conditions: Moderate rain
Average Temperature: 40.5°F
Average Humidity: 82%
Average Temperature: 40.5°F
Average Humidity: 82%
Chance of Rain: 83%
Wind: 21.3 mph
UV Index: 0.5
Wind: 21.3 mph
UV Index: 0.5
Air Quality
AQI:
1 - Good
PM2.5:
10.72 μg/m3
PM10:
12.38 μg/m3
Carbon Monoxide: 347.13 μg/m3
Nitrogen Dioxide: 13.76 μg/m3
Sulphur Dioxide: 2.58 μg/m3
Ozone: 71.32 μg/m3
Nitrogen Dioxide: 13.76 μg/m3
Sulphur Dioxide: 2.58 μg/m3
Ozone: 71.32 μg/m3
Astronomical
Sunrise: 6:10 AM
Sun Transit: 1:02 PM
Sunset: 7:56 PM
Daylight: 13 hrs 46 mins
Sun Transit: 1:02 PM
Sunset: 7:56 PM
Daylight: 13 hrs 46 mins
Moonrise: 3:16 AM
Moon Transit: 7:45 AM
Moonset: 12:23 AM
Moon Phase: Last Quarter
Moon Illumination: 27.2%
Moon Transit: 7:45 AM
Moonset: 12:23 AM
Moon Phase: Last Quarter
Moon Illumination: 27.2%
Best Times for Fishing or Hunting
Major Periods
7:15 AM - 9:45 AM12:00 AM - 12:00 AM
Minor Periods
11:53 AM - 1:23 PM2:46 AM - 4:16 AM
Action Rating: 2 out of 5
Tuesday, April 22, 2025
Weather Forecast
Conditions: Patchy rain nearby
Average Temperature: 44.4°F
Average Humidity: 88%
Average Temperature: 44.4°F
Average Humidity: 88%
Chance of Rain: 83%
Wind: 17.9 mph
UV Index: 0.4
Wind: 17.9 mph
UV Index: 0.4
Air Quality
AQI:
1 - Good
PM2.5:
11.71 μg/m3
PM10:
11.94 μg/m3
Carbon Monoxide: 365.49 μg/m3
Nitrogen Dioxide: 6.75 μg/m3
Sulphur Dioxide: 2.8 μg/m3
Ozone: 86.08 μg/m3
Nitrogen Dioxide: 6.75 μg/m3
Sulphur Dioxide: 2.8 μg/m3
Ozone: 86.08 μg/m3
Astronomical
Sunrise: 6:08 AM
Sun Transit: 1:02 PM
Sunset: 7:57 PM
Daylight: 13 hrs 49 mins
Sun Transit: 1:02 PM
Sunset: 7:57 PM
Daylight: 13 hrs 49 mins
Moonrise: 3:44 AM
Moon Transit: 8:36 AM
Moonset: 1:38 PM
Moon Phase: Last Quarter
Moon Illumination: 17.8%
Moon Transit: 8:36 AM
Moonset: 1:38 PM
Moon Phase: Last Quarter
Moon Illumination: 17.8%
Best Times for Fishing or Hunting
Major Periods
8:06 AM - 10:36 AM12:00 AM - 12:00 AM
Minor Periods
1:08 PM - 2:38 PM3:14 AM - 4:44 AM
Action Rating: 2 out of 5
Wednesday, April 23, 2025
Weather Forecast
Conditions: Overcast
Average Temperature: 44.7°F
Average Humidity: 77%
Average Temperature: 44.7°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 1.2
Wind: 9.4 mph
UV Index: 1.2
Air Quality
AQI:
1 - Good
PM2.5:
3.3 μg/m3
PM10:
3.36 μg/m3
Carbon Monoxide: 342.53 μg/m3
Nitrogen Dioxide: 7.8 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 79.23 μg/m3
Nitrogen Dioxide: 7.8 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 79.23 μg/m3
Astronomical
Sunrise: 6:06 AM
Sun Transit: 1:02 PM
Sunset: 7:58 PM
Daylight: 13 hrs 52 mins
Sun Transit: 1:02 PM
Sunset: 7:58 PM
Daylight: 13 hrs 52 mins
Moonrise: 4:08 AM
Moon Transit: 9:25 AM
Moonset: 2:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.0%
Moon Transit: 9:25 AM
Moonset: 2:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.0%
Best Times for Fishing or Hunting
Major Periods
8:55 AM - 11:25 AM12:00 AM - 12:00 AM
Minor Periods
2:26 PM - 3:56 PM3:38 AM - 5:08 AM
Action Rating: 2 out of 5
The times presented here are based upon the solunar theory, which is the idea that the movements of
fish and other animals are affected by the location of the sun and moon. The major periods are
believed to be the times of the greatest animal activity and occur when the moon is directly
overhead or underfoot (lunar transits). The minor periods also see increased activity and
occur when the moon is rising or setting. The strongest activity occurs during full or new moons,
and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.
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