Potsdam Weather Forecast

    • 24
    • 35

    Snow

    • 27
    • 39

    Mostly Cloudy

    • 24
    • 36

    Rain/Snow Likely

    • 14
    • 33

    Slight Chance Snow

    • 21
    • 35

    Mostly Cloudy

    • 17
    • 35

    Chance Snow

Today 20 Mar Southwestern St. Lawrence

Snow this Morning, then rain or snow this afternoon. Precipitation may be heavy at Times this afternoon. Snow accumulation of 2 to 4 Inches. Highs in the mid 30s. East Winds around 10 Mph, becoming northeast this afternoon. Chance of precipitation near 100 percent.

Tonight 20 Mar Southwestern St. Lawrence

Mostly cloudy. Lows in the mid 20s. North Winds around 10 Mph until Midnight, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potsdam Temperature Statistics

March Temperature

Massena, Massena International-Richards Field (19.3 miles)

  • Lowest 2 March, 2026

    -15.4 °F

  • Average March

    31.5 °F

  • Highest 16 March, 2026

    68 °F

Climate (2021–Present)

Massena, Massena International-Richards Field (19.3 miles)

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  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    46.3 °F

  • Average High 2021–2026

    56 °F
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