Grasse River Weather Forecast

    • 36
    • 45

    Rain

    • 11
    • 38

    Rain

    • 21
    • 32

    Snow Showers Likely

    • 6
    • 30

    Chance Snow Showers

    • 6
    • 17

    Snow Showers Likely

    • 16
    • 31

    Snow Showers

Today 18 Dec Southeastern St. Lawrence

Partly sunny. Highs in the mid 40s. South Winds 15 to 20 Mph. Gusts up to 30 Mph, increasing to 40 Mph this afternoon.

Tonight 18 Dec Southeastern St. Lawrence

Showers likely until Midnight, then rain after midnight. Windy with Lows in the upper 30s. South Winds 20 to 30 Mph with Gusts up to 50 Mph. Chance of rain near 100 percent.

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Grasse River Temperature Statistics

December Temperature

Saranac Lake, Adirondack Regional Airport (34.8 miles)

  • Lowest 9 December, 2025

    -20.9 °F

  • Average December

    14.7 °F

  • Highest 10 December, 2025

    30.9 °F

Climate (2020–Present)

Saranac Lake, Adirondack Regional Airport (34.8 miles)

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  • Average Low 2020–2025

    31.1 °F

  • Average 2020–2025

    42.8 °F

  • Average High 2020–2025

    53.5 °F
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