National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Winter Storm Watch in Effect for Southeastern St. Lawrence County

A Winter Storm Watch is in effect for southeastern St. Lawrence County in New York. Lake effect snow is expected to develop, with total snow accumulations between 4 and 10 inches possible. Travel could be very hazardous, especially for anyone traveling for the Thanksgiving holiday. Continue to monitor the latest forecasts for updates. Read More >

Current conditions at

Massena, Massena International-Richards Field (KMSS)

Lat: 44.94°NLon: 74.85°WElev: 217ft.

Overcast

38°F

3°C

Humidity 83%
Wind Speed Calm
Barometer 30.09 in (1019.4 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 25 Nov 8:53 am EST
Extended Forecast for

5 Miles SW Potsdam NY

  • Today

    Today: Cloudy, with a high near 49. South wind around 7 mph.

    High: 49 °F

    Cloudy

  • Tonight

    Tonight: Rain. Low around 40. Southeast wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain

  • Wednesday

    Wednesday: Showers, mainly after 4pm. High near 52. Southeast wind 5 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Showers
    Likely then
    Showers

  • Wednesday Night

    Wednesday Night: Rain showers before 1am, then a chance of rain and snow showers between 1am and 3am, then a chance of snow showers after 3am. Low around 31. Southwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Showers then
    Rain/Snow

  • Thanksgiving Day

    Thanksgiving Day: Rain and snow showers likely before 11am, then rain showers likely between 11am and 3pm, then rain and snow showers likely after 3pm. Mostly cloudy, with a high near 37. Breezy, with a southwest wind around 22 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Snow showers. Low around 26. West wind 11 to 16 mph. Chance of precipitation is 80%.

    Low: 26 °F

    Snow Showers

  • Friday

    Friday: Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 31. West wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

    High: 31 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. West wind 7 to 11 mph.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 30. West wind 6 to 9 mph.

    High: 30 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, with a high near 49. South wind around 7 mph.
Tonight
Rain. Low around 40. Southeast wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers, mainly after 4pm. High near 52. Southeast wind 5 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain showers before 1am, then a chance of rain and snow showers between 1am and 3am, then a chance of snow showers after 3am. Low around 31. Southwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thanksgiving Day
Rain and snow showers likely before 11am, then rain showers likely between 11am and 3pm, then rain and snow showers likely after 3pm. Mostly cloudy, with a high near 37. Breezy, with a southwest wind around 22 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow showers. Low around 26. West wind 11 to 16 mph. Chance of precipitation is 80%.
Friday
Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 31. West wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Friday Night
Mostly cloudy, with a low around 21. West wind 7 to 11 mph.
Saturday
Partly sunny, with a high near 30. West wind 6 to 9 mph.
Saturday Night
A 40 percent chance of snow showers after 1am. Mostly cloudy, with a low around 19. Calm wind becoming southeast around 5 mph after midnight.
Sunday
Rain and snow showers likely. Mostly cloudy, with a high near 36. South wind 6 to 9 mph. Chance of precipitation is 60%.
Sunday Night
Snow showers likely. Mostly cloudy, with a low around 26. Southwest wind around 8 mph. Chance of precipitation is 60%.
Monday
Rain and snow showers likely. Mostly cloudy, with a high near 39. Southwest wind 8 to 10 mph. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Potsdam NY
 44.63°N 75.05°W (Elev. 400 ft)
Last Update:
4:23 am EST Nov 25, 2025
Forecast Valid:
9am EST Nov 25, 2025-6pm EST Dec 1, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation