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

Current Water Temperature

56.1°F

Measurement Time: Monday, September 28, 2026, 1:54 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

62°F
Mostly Cloudy
Mostly Cloudy
87%
NE 10 mph
58°F

Weather Forecast

Mostly Cloudy
This Afternoon
64°F - Mostly Cloudy
Mostly Cloudy
Tonight
52°F - Mostly Cloudy
Sunny
Tuesday
68°F - Sunny
Mostly Clear
Tuesday Night
54°F - Mostly Clear
Partly Sunny
Wednesday
71°F - Partly Sunny
Mostly Cloudy
Wednesday Night
61°F - Mostly Cloudy
Partly Sunny
Thursday
75°F - Partly Sunny
Chance Rain Showers
Thursday Night
58°F - Chance Rain Showers
Chance Rain Showers
Friday
68°F - Chance Rain Showers
Partly Cloudy
Friday Night
45°F - Partly Cloudy
Mostly Sunny
Saturday
64°F - Mostly Sunny
Partly Cloudy then Slight Chance Rain Showers
Saturday Night
43°F - Partly Cloudy then Slight Chance Rain Showers
Chance Rain Showers
Sunday
65°F - Chance Rain Showers
Chance Rain Showers
Sunday Night
45°F - Chance Rain Showers

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:54 AM
Sunset: 6:50 PM
Daylight: 11 hrs 52 mins
Moonrise: 7:26 PM
Moon Transit: 2:01 AM
Moonset: 9:18 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:31 AM - 4:01 AM
3:53 PM - 6:23 PM

Minor Periods

6:56 PM - 8:26 PM
8:48 AM - 10:18 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:58 AM
Sun Transit: 12:54 AM
Sunset: 6:50 PM
Daylight: 11 hrs 52 mins
Moonrise: 7:26 PM
Moon Transit: 2:01 AM
Moonset: 9:18 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:31 AM - 4:01 AM
3:53 PM - 6:23 PM

Minor Periods

6:56 PM - 8:26 PM
8:48 AM - 10:18 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:58 AM
Sun Transit: 12:54 AM
Sunset: 6:50 PM
Daylight: 11 hrs 52 mins
Moonrise: 7:26 PM
Moon Transit: 2:01 AM
Moonset: 9:18 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:31 AM - 4:01 AM
3:53 PM - 6:23 PM

Minor Periods

6:56 PM - 8:26 PM
8:48 AM - 10:18 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:59 AM
Sun Transit: 12:53 AM
Sunset: 6:48 PM
Daylight: 11 hrs 49 mins
Moonrise: 7:57 PM
Moon Transit: 2:53 AM
Moonset: 10:37 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
4:47 PM - 7:17 PM

Minor Periods

7:27 PM - 8:57 PM
10:07 AM - 11:37 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:59 AM
Sun Transit: 12:53 AM
Sunset: 6:48 PM
Daylight: 11 hrs 49 mins
Moonrise: 7:57 PM
Moon Transit: 2:53 AM
Moonset: 10:37 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
4:47 PM - 7:17 PM

Minor Periods

7:27 PM - 8:57 PM
10:07 AM - 11:37 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:00 AM
Sun Transit: 12:53 AM
Sunset: 6:46 PM
Daylight: 11 hrs 46 mins
Moonrise: 8:37 PM
Moon Transit: 3:49 AM
Moonset: 11:56 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:19 AM - 5:49 AM
5:46 PM - 8:16 PM

Minor Periods

8:07 PM - 9:37 PM
11:26 AM - 12:56 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:00 AM
Sun Transit: 12:53 AM
Sunset: 6:46 PM
Daylight: 11 hrs 46 mins
Moonrise: 8:37 PM
Moon Transit: 3:49 AM
Moonset: 11:56 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:19 AM - 5:49 AM
5:46 PM - 8:16 PM

Minor Periods

8:07 PM - 9:37 PM
11:26 AM - 12:56 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:02 AM
Sun Transit: 12:53 AM
Sunset: 6:45 PM
Daylight: 11 hrs 43 mins
Moonrise: 9:28 PM
Moon Transit: 4:49 AM
Moonset: 1:11 PM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
6:48 PM - 9:18 PM

Minor Periods

8:58 PM - 10:28 PM
12:41 AM - 2:11 PM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:02 AM
Sun Transit: 12:53 AM
Sunset: 6:45 PM
Daylight: 11 hrs 43 mins
Moonrise: 9:28 PM
Moon Transit: 4:49 AM
Moonset: 1:11 PM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
6:48 PM - 9:18 PM

Minor Periods

8:58 PM - 10:28 PM
12:41 AM - 2:11 PM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:03 AM
Sun Transit: 12:53 AM
Sunset: 6:43 PM
Daylight: 11 hrs 40 mins
Moonrise: 10:32 PM
Moon Transit: 5:52 AM
Moonset: 2:17 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
7:51 PM - 10:21 PM

Minor Periods

10:02 PM - 11:32 PM
1:47 PM - 3:17 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:03 AM
Sun Transit: 12:53 AM
Sunset: 6:43 PM
Daylight: 11 hrs 40 mins
Moonrise: 10:32 PM
Moon Transit: 5:52 AM
Moonset: 2:17 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
7:51 PM - 10:21 PM

Minor Periods

10:02 PM - 11:32 PM
1:47 PM - 3:17 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:04 AM
Sun Transit: 12:52 AM
Sunset: 6:41 PM
Daylight: 11 hrs 37 mins
Moonrise: 11:46 PM
Moon Transit: 6:54 AM
Moonset: 3:10 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
8:52 PM - 11:22 PM

Minor Periods

12:00 AM - 12:00 AM
2:40 PM - 4:10 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:04 AM
Sun Transit: 12:52 AM
Sunset: 6:41 PM
Daylight: 11 hrs 37 mins
Moonrise: 11:46 PM
Moon Transit: 6:54 AM
Moonset: 3:10 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
8:52 PM - 11:22 PM

Minor Periods

12:00 AM - 12:00 AM
2:40 PM - 4:10 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:05 AM
Sun Transit: 12:52 AM
Sunset: 6:39 PM
Daylight: 11 hrs 34 mins
Moonrise: 12:46 AM
Moon Transit: 7:54 AM
Moonset: 3:51 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:24 AM - 9:54 AM
12:00 AM - 12:00 AM

Minor Periods

3:21 PM - 4:51 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:05 AM
Sun Transit: 12:52 AM
Sunset: 6:39 PM
Daylight: 11 hrs 34 mins
Moonrise: 12:46 AM
Moon Transit: 7:54 AM
Moonset: 3:51 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:24 AM - 9:54 AM
12:00 AM - 12:00 AM

Minor Periods

3:21 PM - 4:51 PM
12:00 AM - 12:00 AM

Action Rating: 3 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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