Gibson Reservoir Weather Forecast

    • 28
    • 38

    Snow Likely

    • 25
    • 37

    Chance Snow

    • 29
    • 42

    Slight Chance Rain/Snow

    • 19
    • 43

    Chance Rain/Snow

    • 20
    • 33

    Snow Likely

    • 21
    • 35

    Chance Snow

    • 25
    • 37

    Mostly Cloudy

Today 21 Dec Southern Rocky Mountain Front

Not as cold. Mostly cloudy with a 50 percent chance of snow. Highs 27 to 35. Southwest Winds 5 to 15 Mph with Gusts to around 30 Mph.

Tonight 21 Dec Southern Rocky Mountain Front

Mostly cloudy. Chance of snow and light freezing rain in the Evening, then Snow, light freezing rain likely and chance of rain after midnight. Snow accumulation up to 5 Inches. Near steady temperature in the upper 20s. Southwest Winds up to 10 Mph. Gusts up to 30 Mph after midnight. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gibson Reservoir Temperature Statistics

December Temperature

Great Falls, Great Falls International Airport (66.5 miles)

  • Lowest 12 December, 2025

    3.9 °F

  • Average December

    34.9 °F

  • Highest 14 December, 2025

    61 °F

Climate (2020–Present)

Great Falls, Great Falls International Airport (66.5 miles)

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  • Average Low 2020–2025

    34.1 °F

  • Average 2020–2025

    46.6 °F

  • Average High 2020–2025

    58.6 °F
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