Potsdam Weather Forecast

    • 44
    • 63

    Chance Rain

    • 45
    • 62

    Rain Likely

    • 42
    • 61

    Mostly Cloudy

    • 42
    • 62

    Partly Sunny

    • 45
    • 66

    Slight Chance Rain Showers

    • 47
    • 65

    Chance Rain Showers

Today 19 Sep Southwestern St. Lawrence

Sunny. Highs in the lower 60s. Light and variable Winds.

Tonight 19 Sep Southwestern St. Lawrence

Partly cloudy until Midnight, then mostly cloudy with a chance of rain after midnight. Lows in the mid 40s. Light and variable Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potsdam Temperature Statistics

September Temperature

Massena, Massena International-Richards Field (19.3 miles)

  • Lowest 15 September, 2026

    41.6 °F

  • Average September

    64.5 °F

  • Highest 2 September, 2026

    81.6 °F

Climate (2021–2026)

Massena, Massena International-Richards Field (19.3 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    55.9 °F
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