Winthrop, New York Weather
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Weather Forecast for Winthrop, New York : St. Lawrence County
Issued: 6:21 am EDT Sep 14, 2025 Latitude: 44.7947761 Longitude: -74.7868595 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Sunny on Today Cloudy on Tonight Mostly Sunny on Monday Sunny on Tuesday Sunny on Wednesday Mostly Sunny on Thursday Mostly Sunny on Friday Sunny on Saturday
High: 74°F Low: 48°F High: 75°F High: 78°F High: 81°F High: 82°F High: 75°F High: 65°F
Low: 48°F Low: 51°F Low: 54°F Low: 55°F Low: 45°F  
Mostly Sunny Cloudy Mostly Sunny Sunny Sunny Mostly Sunny Mostly Sunny Sunny
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Current Conditions at
MASSENA - (KMSS)
52°
Mostly Cloudy
Mist
as of 6:44 AM EDST
Rel. Humidity: 93%
Dew Point: 50°F
Visibility: 2 1/2 Miles
Pressure: 30.03 in.
Flight Rule: LIFR
Wind Data
Calm
Cloud Level(s): Broken at 200ft
Current Conditions at
SARANAC LAKE - (KSLK)
52°
Cloudy
as of 5:51 AM EDST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 9 Miles
Pressure: 30.03 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Broken at 800ft, Solid Overcast at 1700ft
Mostly Sunny on Today Today... Mostly sunny, with a high near 74. Calm wind becoming northwest around 6 mph in the afternoon.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 48. Calm wind.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 75. Light northeast wind.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 48. Calm wind.
Sunny on Tuesday Tuesday... Sunny, with a high near 78. Calm wind.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 51. Calm wind.
Sunny on Wednesday Wednesday... Sunny, with a high near 81. Calm wind.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 54. Calm wind.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 82. West wind 3 to 6 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 55. Southwest wind 3 to 5 mph.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 75. Northwest wind 6 to 8 mph.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 45. Northeast wind around 6 mph.
Sunny on Saturday Saturday... Sunny, with a high near 65. Northeast wind 6 to 8 mph.
Sun Almanac for Winthrop, New York
Sunrise: 06:37 AM
Sunset: 7:12 PM
Civil Sunrise:06:08 AM
Civil Sunset: 7:41 PM
Nautical Sunrise: 05:33 AM
Nautical Sunset: 8:16 PM
Astro Sunrise: 04:57 AM
Astro Sunset: 8:52 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.