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

Current Water Temperature

72.0°F

Measurement Time: Monday, August 31, 2026, 12:00 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

72°F

Conditions: Mostly Cloudy

Humidity: 78%

Wind: S 3 mph

Dew Point: 65°F

Weather Forecast

This Afternoon
77°F - Chance Rain Showers

Tonight
64°F - Rain Showers

Tuesday
76°F - Chance Rain Showers

Tuesday Night
65°F - Chance Rain Showers

Wednesday
78°F - Chance Showers And Thunderstorms then Showers And Thunderstorms

Wednesday Night
64°F - Showers And Thunderstorms Likely

Thursday
77°F - Chance Rain Showers

Thursday Night
59°F - Slight Chance Rain Showers then Partly Cloudy

Friday
75°F - Partly Sunny then Slight Chance Rain Showers

Friday Night
56°F - Slight Chance Rain Showers then Partly Cloudy

Saturday
73°F - Mostly Sunny

Saturday Night
54°F - Mostly Clear

Sunday
75°F - Sunny then Slight Chance Rain Showers

Sunday Night
56°F - Slight Chance Rain Showers then Partly Cloudy

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:04 PM
Sunset: 7:41 PM
Daylight: 13 hrs 16 mins

Moonrise: 8:57 PM
Moon Transit: 3:18 AM
Moonset: 10:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:48 AM - 5:18 AM
5:08 PM - 7:38 PM

Minor Periods

8:27 PM - 9:57 PM
9:47 AM - 11:17 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:26 AM
Sun Transit: 1:04 PM
Sunset: 7:41 PM
Daylight: 13 hrs 16 mins

Moonrise: 8:57 PM
Moon Transit: 3:18 AM
Moonset: 10:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:48 AM - 5:18 AM
5:08 PM - 7:38 PM

Minor Periods

8:27 PM - 9:57 PM
9:47 AM - 11:17 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:26 AM
Sun Transit: 1:04 PM
Sunset: 7:41 PM
Daylight: 13 hrs 16 mins

Moonrise: 8:57 PM
Moon Transit: 3:18 AM
Moonset: 10:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:48 AM - 5:18 AM
5:08 PM - 7:38 PM

Minor Periods

8:27 PM - 9:57 PM
9:47 AM - 11:17 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:27 AM
Sun Transit: 1:03 PM
Sunset: 7:40 PM
Daylight: 13 hrs 13 mins

Moonrise: 9:22 PM
Moon Transit: 4:06 AM
Moonset: 11:32 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:36 AM - 6:06 AM
5:58 PM - 8:28 PM

Minor Periods

8:52 PM - 10:22 PM
11:02 AM - 12:32 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:27 AM
Sun Transit: 1:03 PM
Sunset: 7:40 PM
Daylight: 13 hrs 13 mins

Moonrise: 9:22 PM
Moon Transit: 4:06 AM
Moonset: 11:32 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:36 AM - 6:06 AM
5:58 PM - 8:28 PM

Minor Periods

8:52 PM - 10:22 PM
11:02 AM - 12:32 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:28 AM
Sun Transit: 1:03 PM
Sunset: 7:38 PM
Daylight: 13 hrs 10 mins

Moonrise: 9:55 PM
Moon Transit: 4:58 AM
Moonset: 12:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:28 AM - 6:58 AM
6:53 PM - 9:23 PM

Minor Periods

9:25 PM - 10:55 PM
12:21 AM - 1:51 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:28 AM
Sun Transit: 1:03 PM
Sunset: 7:38 PM
Daylight: 13 hrs 10 mins

Moonrise: 9:55 PM
Moon Transit: 4:58 AM
Moonset: 12:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:28 AM - 6:58 AM
6:53 PM - 9:23 PM

Minor Periods

9:25 PM - 10:55 PM
12:21 AM - 1:51 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:29 AM
Sun Transit: 1:03 PM
Sunset: 7:36 PM
Daylight: 13 hrs 7 mins

Moonrise: 10:37 PM
Moon Transit: 5:55 AM
Moonset: 2:08 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:25 AM - 7:55 AM
7:52 PM - 10:22 PM

Minor Periods

10:07 PM - 11:37 PM
1:38 PM - 3:08 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:29 AM
Sun Transit: 1:03 PM
Sunset: 7:36 PM
Daylight: 13 hrs 7 mins

Moonrise: 10:37 PM
Moon Transit: 5:55 AM
Moonset: 2:08 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:25 AM - 7:55 AM
7:52 PM - 10:22 PM

Minor Periods

10:07 PM - 11:37 PM
1:38 PM - 3:08 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:30 AM
Sun Transit: 1:02 PM
Sunset: 7:34 PM
Daylight: 13 hrs 4 mins

Moonrise: 11:32 PM
Moon Transit: 6:55 AM
Moonset: 3:20 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:25 AM - 8:55 AM
8:54 PM - 11:24 PM

Minor Periods

12:00 AM - 12:00 AM
2:50 PM - 4:20 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:30 AM
Sun Transit: 1:02 PM
Sunset: 7:34 PM
Daylight: 13 hrs 4 mins

Moonrise: 11:32 PM
Moon Transit: 6:55 AM
Moonset: 3:20 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:25 AM - 8:55 AM
8:54 PM - 11:24 PM

Minor Periods

12:00 AM - 12:00 AM
2:50 PM - 4:20 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:32 AM
Sun Transit: 1:02 PM
Sunset: 7:32 PM
Daylight: 13 hrs 1 mins

Moonrise: 12:32 AM
Moon Transit: 7:58 AM
Moonset: 4:23 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:28 AM - 9:58 AM
12:00 AM - 12:00 AM

Minor Periods

3:53 PM - 5:23 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:32 AM
Sun Transit: 1:02 PM
Sunset: 7:32 PM
Daylight: 13 hrs 1 mins

Moonrise: 12:32 AM
Moon Transit: 7:58 AM
Moonset: 4:23 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:28 AM - 9:58 AM
12:00 AM - 12:00 AM

Minor Periods

3:53 PM - 5:23 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:33 AM
Sun Transit: 1:02 PM
Sunset: 7:31 PM
Daylight: 12 hrs 58 mins

Moonrise: 12:40 AM
Moon Transit: 9:00 AM
Moonset: 5:12 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:42 PM - 6:12 PM
12:10 AM - 1:40 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:33 AM
Sun Transit: 1:02 PM
Sunset: 7:31 PM
Daylight: 12 hrs 58 mins

Moonrise: 12:40 AM
Moon Transit: 9:00 AM
Moonset: 5:12 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:42 PM - 6:12 PM
12:10 AM - 1:40 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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