De Kalb Weather Forecast

    • 7
    • 30

    Snow Showers Likely

    • 3
    • 16

    Mostly Cloudy

    • 10
    • 21

    Snow Likely

    • 20
    • 26

    Mostly Cloudy

    • 22
    • 36

    Chance Snow Showers

    • 18
    • 41

    Rain Showers Likely

Today 13 Dec Southwestern St. Lawrence

Mostly cloudy. A chance of snow Showers this Morning, then snow Showers likely this afternoon. Snow accumulation around an inch. Highs around 30. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of snow 70 percent.

Tonight 13 Dec Southwestern St. Lawrence

Partly cloudy with a chance of snow Showers until Midnight, then mostly cloudy with a slight chance of snow Showers after midnight. Additional snow accumulation up to 1 inch possible. Lows around 8 above. Southwest Winds around 10 Mph with Gusts up to 25 Mph until Midnight, becoming light and variable. Chance of snow 40 percent.

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De Kalb Temperature Statistics

December Temperature

Fort Drum / Wheeler-Sack U. S. Army Airfield (36 miles)

  • Lowest 5 December, 2025

    -2.6 °F

  • Average December

    19.7 °F

  • Highest 10 December, 2025

    35.8 °F

Climate (2020–Present)

Fort Drum / Wheeler-Sack U. S. Army Airfield (36 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    56.1 °F
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