Potsdam Weather Forecast

    • 23
    • 28

    Snow Showers Likely

    • 22
    • 34

    Snow

    • 18
    • 28

    Mostly Cloudy

    • 23
    • 32

    Snow

    • 16
    • 30

    Snow

    • 20
    • 28

    Snow Showers Likely

Today 22 Dec Southwestern St. Lawrence

A slight chance of snow Showers this Morning, then snow Showers likely this afternoon. Snow accumulation up to 1 inch. Highs in the upper 20s. Light and variable Winds. Chance of snow 70 percent.

Tonight 22 Dec Southwestern St. Lawrence

Mostly cloudy. A slight chance of snow Showers after midnight. Lows in the lower 20s. Light and variable Winds. Chance of snow 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potsdam Temperature Statistics

December Temperature

Massena, Massena International-Richards Field (19.3 miles)

  • Lowest 9 December, 2025

    -14.1 °F

  • Average December

    20.4 °F

  • Highest 19 December, 2025

    55.9 °F

Climate (2020–Present)

Massena, Massena International-Richards Field (19.3 miles)

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  • Average Low 2020–2025

    36.4 °F

  • Average 2020–2025

    46.4 °F

  • Average High 2020–2025

    56 °F
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