Water Temperature of the St. Lawrence River in Wellesley Island, NY

Current Water Temperature

56.1°F

Measurement Time: Monday, October 26, 2026, 4:36 PM EDT

Temperature Locations

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Local Points of Interest

Coast Guard Station Alexandria Bay; Keewaydin State Park

St. 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

52.4°F
Patchy rain nearby
Conditions: Patchy rain nearby
Humidity: 78%
Feels Like: 47.5°F
Wind: N 10.1 mph
Wind Gusts: 15.3 mph
Pressure: 30.22 in
Precipitation: 0 in
Cloud Cover: 91%
Visibility: 6 mi
UV Index: 0.2

Weather Forecast

Partly Cloudy
Mon
H: 57°F
L: 42°F
Sunny
Tue
H: 46°F
L: 31°F
Overcast
Wed
H: 56°F
L: 36°F

Air Quality

PM2.5: 3.5 μg/m3
PM10: 3.5 μg/m3
Carbon Monoxide: 230 μg/m3
Nitrogen Dioxide: 3.4 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 7:33 AM
Sun Transit: 12:47 AM
Sunset: 6:02 PM
Daylight: 10 hrs 29 mins
Moonrise: 5:55 PM
Moon Transit: 12:42 AM
Moonset: 8:14 AM
Moon Phase: Full
Moon Illumination: 98.9%

Best Times for Fishing or Hunting

Major Periods

12:12 AM - 2:42 AM
2:36 PM - 5:06 PM

Minor Periods

5:25 PM - 6:55 PM
7:44 AM - 9:14 AM

Action Rating: 4 out of 5

Monday, October 26, 2026

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 49.8°F
Average Humidity: 77%
Chance of Rain: 51%
Wind: 10.7 mph
UV Index: 1.5

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:33 AM
Sun Transit: 12:47 AM
Sunset: 6:02 PM
Daylight: 10 hrs 29 mins
Moonrise: 5:55 PM
Moon Transit: 12:42 AM
Moonset: 8:14 AM
Moon Phase: Full
Moon Illumination: 98.9%

Best Times for Fishing or Hunting

Major Periods

12:12 AM - 2:42 AM
2:36 PM - 5:06 PM

Minor Periods

5:25 PM - 6:55 PM
7:44 AM - 9:14 AM

Action Rating: 4 out of 5

Tuesday, October 27, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 38.6°F
Average Humidity: 65%
Chance of Rain: 7%
Wind: 10.7 mph
UV Index: 2.8

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 12:47 AM
Sunset: 6:00 PM
Daylight: 10 hrs 26 mins
Moonrise: 6:33 PM
Moon Transit: 1:37 AM
Moonset: 9:36 AM
Moon Phase: Full
Moon Illumination: 95.3%

Best Times for Fishing or Hunting

Major Periods

1:07 AM - 3:37 AM
3:34 PM - 6:04 PM

Minor Periods

6:03 PM - 7:33 PM
9:06 AM - 10:36 AM

Action Rating: 5 out of 5

Wednesday, October 28, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 45°F
Average Humidity: 55%
Chance of Rain: 17%
Wind: 6 mph
UV Index: 2

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 12:47 AM
Sunset: 5:59 PM
Daylight: 10 hrs 23 mins
Moonrise: 7:21 PM
Moon Transit: 2:38 AM
Moonset: 10:56 AM
Moon Phase: Waning Gibbous
Moon Illumination: 89.4%

Best Times for Fishing or Hunting

Major Periods

2:08 AM - 4:38 AM
4:37 PM - 7:07 PM

Minor Periods

6:51 PM - 8:21 PM
10:26 AM - 11:56 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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