Cascade Weather Forecast

    • 42
    • 60

    Windy

    • 40
    • 54

    Rain Likely

    • 24
    • 46

    Rain/Snow Likely

    • 36
    • 45

    Chance Rain/Snow

    • 23
    • 49

    Chance Snow

    • 25
    • 40

    Partly Sunny

Today 15 Dec Cascade County below 5000ft

Windy. Partly sunny. Highs in the upper 50s. Southwest Winds 15 to 30 Mph. Gusts up to 45 Mph increasing to 55 Mph in the afternoon.

Tonight 15 Dec Cascade County below 5000ft

Very windy. Mostly clear. Lows around 40. Southwest Winds 25 to 35 Mph with Gusts to around 60 Mph shifting to the west 25 to 45 Mph with Gusts to around 70 Mph after midnight.

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Cascade Temperature Statistics

December Temperature

Great Falls, Great Falls International Airport (19.9 miles)

  • Lowest 12 December, 2025

    3.9 °F

  • Average December

    30.6 °F

  • Highest 10 December, 2025

    55.9 °F

Climate (2020–Present)

Great Falls, Great Falls International Airport (19.9 miles)

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  • Average Low 2020–2025

    34.1 °F

  • Average 2020–2025

    46.6 °F

  • Average High 2020–2025

    58.5 °F
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