Water Temperature of the St. Lawrence River in Wellesley Island, NY
Current Water Temperature
62.8°F
Measurement Time: Monday, June 22, 2026, 1:18 AM EDT
Temperature Locations
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Local Points of Interest
Coast Guard Station Alexandria Bay; Keewaydin State ParkSt. Lawrence River
Station Name: Alexandria Bay
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 240 feet
Sensor Depth: -2 feet
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 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
61°F

Clear
61°F
59.7°F
85%
SSW 7.6 mph
16 mph
59.3°F
55.6°F
0 in
0%
6 mi
1015 mbar
0
Five Day Weather Forecast

Mon
H: 73°F
L: 57°F

Tue
H: 72°F
L: 54°F

Wed
H: 68°F
L: 53°F

Thu
H: 67°F
L: 56°F

Fri
H: 68°F
L: 58°F
Air Quality
AQI:
1 - Good
PM2.5:
5.1 μg/m3
PM10:
5.1 μg/m3
Carbon Monoxide: 96 μg/m3
Nitrogen Dioxide: 11.4 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 46 μg/m3
Nitrogen Dioxide: 11.4 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 46 μg/m3
Astronomical
Sunrise: 5:20 AM
Sun Transit: 1:05 PM
Sunset: 8:52 PM
Daylight: 15 hrs 32 mins
Sun Transit: 1:05 PM
Sunset: 8:52 PM
Daylight: 15 hrs 32 mins
Moonrise: 2:06 PM
Moon Transit: 7:45 PM
Moonset: 12:56 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%
Moon Transit: 7:45 PM
Moonset: 12:56 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%
Best Times for Fishing or Hunting
Major Periods
8:50 AM - 11:20 AM7:15 PM - 9:45 PM
Minor Periods
1:36 PM - 3:06 PM12:26 AM - 1:56 AM
Action Rating: 2 out of 5
Monday, June 22, 2026
Weather Forecast
Patchy rain nearby
73.2°F
57.4°F
61.1°F
81%
0.01 in
23%
0%
12.8 mph
7
Air Quality
AQI:
1 - Good
PM2.5:
4.33 μg/m3
PM10:
4.48 μg/m3
Carbon Monoxide: 110 μg/m3
Nitrogen Dioxide: 7.1 μg/m3
Sulphur Dioxide: 0.86 μg/m3
Ozone: 56.54 μg/m3
Nitrogen Dioxide: 7.1 μg/m3
Sulphur Dioxide: 0.86 μg/m3
Ozone: 56.54 μg/m3
Astronomical
Sunrise: 5:20 AM
Sun Transit: 1:05 PM
Sunset: 8:52 PM
Daylight: 15 hrs 32 mins
Sun Transit: 1:05 PM
Sunset: 8:52 PM
Daylight: 15 hrs 32 mins
Moonrise: 2:06 PM
Moon Transit: 7:45 PM
Moonset: 12:56 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%
Moon Transit: 7:45 PM
Moonset: 12:56 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%
Best Times for Fishing or Hunting
Major Periods
8:50 AM - 11:20 AM7:15 PM - 9:45 PM
Minor Periods
1:36 PM - 3:06 PM12:26 AM - 1:56 AM
Action Rating: 2 out of 5
Tuesday, June 23, 2026
Weather Forecast
Partly Cloudy
72.4°F
54.4°F
62.5°F
78%
0 in
14%
0%
8.1 mph
8.4
Air Quality
AQI:
1 - Good
PM2.5:
5.08 μg/m3
PM10:
5.27 μg/m3
Carbon Monoxide: 126.13 μg/m3
Nitrogen Dioxide: 6.69 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 50.83 μg/m3
Nitrogen Dioxide: 6.69 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 50.83 μg/m3
Astronomical
Sunrise: 5:20 AM
Sun Transit: 1:06 PM
Sunset: 8:52 PM
Daylight: 15 hrs 32 mins
Sun Transit: 1:06 PM
Sunset: 8:52 PM
Daylight: 15 hrs 32 mins
Moonrise: 3:12 PM
Moon Transit: 8:28 PM
Moonset: 1:14 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%
Moon Transit: 8:28 PM
Moonset: 1:14 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%
Best Times for Fishing or Hunting
Major Periods
9:32 AM - 12:02 AM7:58 PM - 10:28 PM
Minor Periods
2:42 PM - 4:12 PM12:44 AM - 2:14 AM
Action Rating: 2 out of 5
Wednesday, June 24, 2026
Weather Forecast
Sunny
67.6°F
53.1°F
61.2°F
74%
0 in
9%
0%
13.2 mph
8
Air Quality
AQI:
1 - Good
PM2.5:
3.24 μg/m3
PM10:
3.41 μg/m3
Carbon Monoxide: 126.83 μg/m3
Nitrogen Dioxide: 2.9 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 56.38 μg/m3
Nitrogen Dioxide: 2.9 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 56.38 μg/m3
Astronomical
Sunrise: 5:20 AM
Sun Transit: 1:06 PM
Sunset: 8:52 PM
Daylight: 15 hrs 32 mins
Sun Transit: 1:06 PM
Sunset: 8:52 PM
Daylight: 15 hrs 32 mins
Moonrise: 4:19 PM
Moon Transit: 9:12 PM
Moonset: 1:34 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%
Moon Transit: 9:12 PM
Moonset: 1:34 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%
Best Times for Fishing or Hunting
Major Periods
10:15 AM - 12:45 AM8:42 PM - 11:12 PM
Minor Periods
3:49 PM - 5:19 PM1:04 AM - 2:34 AM
Action Rating: 3 out of 5
Thursday, June 25, 2026
Weather Forecast
Patchy rain nearby
66.7°F
55.5°F
61.2°F
84%
0.13 in
71%
0%
10.5 mph
5.7
Air Quality
AQI:
1 - Good
PM2.5:
3.42 μg/m3
PM10:
3.64 μg/m3
Carbon Monoxide: 149.25 μg/m3
Nitrogen Dioxide: 4.3 μg/m3
Sulphur Dioxide: 0.65 μg/m3
Ozone: 61.75 μg/m3
Nitrogen Dioxide: 4.3 μg/m3
Sulphur Dioxide: 0.65 μg/m3
Ozone: 61.75 μg/m3
Astronomical
Sunrise: 5:21 AM
Sun Transit: 1:06 PM
Sunset: 8:52 PM
Daylight: 15 hrs 32 mins
Sun Transit: 1:06 PM
Sunset: 8:52 PM
Daylight: 15 hrs 32 mins
Moonrise: 5:25 PM
Moon Transit: 9:58 PM
Moonset: 1:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%
Moon Transit: 9:58 PM
Moonset: 1:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%
Best Times for Fishing or Hunting
Major Periods
11:01 AM - 1:31 PM9:28 PM - 11:58 PM
Minor Periods
4:55 PM - 6:25 PM1:27 AM - 2:57 AM
Action Rating: 2 out of 5
Friday, June 26, 2026
Weather Forecast
Patchy rain nearby
68.1°F
57.9°F
62.9°F
90%
0.07 in
74%
0%
17.9 mph
0.8
Air Quality
AQI:
1 - Good
PM2.5:
4.32 μg/m3
PM10:
4.51 μg/m3
Carbon Monoxide: 160.33 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 84.22 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 84.22 μg/m3
Astronomical
Sunrise: 5:21 AM
Sun Transit: 1:06 PM
Sunset: 8:52 PM
Daylight: 15 hrs 31 mins
Sun Transit: 1:06 PM
Sunset: 8:52 PM
Daylight: 15 hrs 31 mins
Moonrise: 6:30 PM
Moon Transit: 10:46 PM
Moonset: 2:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%
Moon Transit: 10:46 PM
Moonset: 2:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%
Best Times for Fishing or Hunting
Major Periods
11:48 AM - 2:18 PM12:00 AM - 12:00 AM
Minor Periods
6:00 PM - 7:30 PM1:55 AM - 3:25 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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