Water Temperature of the St. Lawrence River in Wellesley Island, NY
Current Water Temperature
Measurement Time: Monday, January 12, 2026, 12:24 AM EST
Temperature Locations
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Local Points of Interest
Coast Guard Station Alexandria Bay; Keewaydin State ParkStation 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

Five Day Weather Forecast

Mon
H: 33°F
L: 15°F

Tue
H: 36°F
L: 32°F

Wed
H: 37°F
L: 20°F

Thu
H: 15°F
L: 11°F

Fri
H: 19°F
L: 10°F
Air Quality
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 74 μg/m3
Astronomical
Sun Transit: 12:12 AM
Sunset: 4:47 PM
Daylight: 9 hrs 10 mins
Moon Transit: 7:10 AM
Moonset: 11:51 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%
Best Times for Fishing or Hunting
Major Periods
6:40 AM - 9:10 AM8:58 PM - 11:28 PM
Minor Periods
11:21 AM - 12:51 AM1:51 AM - 3:21 AM
Action Rating: 2 out of 5
Winter Weather Advisory issued January 11 at 1:03PM EST until January 13 at 7:00AM EST by NWS Buffalo NY
Effective: Sun January 11, 2026, 1:03 PM
Expires: Mon January 12, 2026, 1:00 AM
* WHAT...Lake effect snow expected. Total snow accumulations 6 to 12 inches in the most persistent lake snows across the higher terrain of the Tug Hill and western Adirondack foothills, with much lower amounts falling across the lower elevations. This will be a long-duration event with two main rounds of snow. The first round will be this afternoon and evening. A break in the snows will then follow overnight, before the lake snows redevelop Monday morning and persist into Monday night. Winds gusting as high as 35 mph will also produce blowing and drifting snow. * WHERE...The Eastern Lake Ontario Region, mainly across the higher terrain of the Tug Hill and western Adirondack foothills. * WHEN...Until 7 AM EST Tuesday. * IMPACTS...Travel will be very difficult. The hazardous conditions will impact the Monday morning and evening commutes.
Lake effect snow will fall in relatively narrow bands. If traveling, be prepared for rapidly changing road conditions and visibilities. Submit snow reports through our website or social media.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.43 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 69.68 μg/m3
Astronomical
Sun Transit: 12:12 AM
Sunset: 4:47 PM
Daylight: 9 hrs 10 mins
Moon Transit: 7:10 AM
Moonset: 11:51 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%
Best Times for Fishing or Hunting
Major Periods
6:40 AM - 9:10 AM8:58 PM - 11:28 PM
Minor Periods
11:21 AM - 12:51 AM1:51 AM - 3:21 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.64 μg/m3
Sulphur Dioxide: 2.59 μg/m3
Ozone: 55.96 μg/m3
Astronomical
Sun Transit: 12:12 AM
Sunset: 4:48 PM
Daylight: 9 hrs 11 mins
Moon Transit: 7:55 AM
Moonset: 12:19 AM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%
Best Times for Fishing or Hunting
Major Periods
7:25 AM - 9:55 AM12:00 AM - 12:00 AM
Minor Periods
11:49 AM - 1:19 PM2:57 AM - 4:27 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.93 μg/m3
Sulphur Dioxide: 4.43 μg/m3
Ozone: 48.24 μg/m3
Astronomical
Sun Transit: 12:12 AM
Sunset: 4:50 PM
Daylight: 9 hrs 13 mins
Moon Transit: 8:44 AM
Moonset: 12:53 AM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%
Best Times for Fishing or Hunting
Major Periods
8:14 AM - 10:44 AM12:00 AM - 12:00 AM
Minor Periods
12:23 AM - 1:53 PM4:02 AM - 5:32 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.86 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 65.23 μg/m3
Astronomical
Sun Transit: 12:13 AM
Sunset: 4:51 PM
Daylight: 9 hrs 15 mins
Moon Transit: 9:35 AM
Moonset: 1:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:05 AM - 11:35 AM
Minor Periods
1:06 PM - 2:36 PM5:02 AM - 6:32 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:13 AM
Sunset: 4:52 PM
Daylight: 9 hrs 17 mins
Moon Transit: 10:27 AM
Moonset: 2:30 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:57 AM - 12:27 AM
Minor Periods
2:00 PM - 3:30 PM5:57 AM - 7:27 AM
Action Rating: 3 out of 5
