Fort Benton Airport Weather Forecast

    • 33
    • 41

    Breezy

    • 20
    • 50

    Slight Chance Snow

    • 26
    • 41

    Partly Sunny

    • 30
    • 43

    Mostly Cloudy

    • 22
    • 46

    Partly Sunny

    • 24
    • 43

    Mostly Cloudy

    • 14
    • 38

    Mostly Cloudy

Today 18 Dec Western and Central Chouteau County

Colder. Mostly sunny until late afternoon then becoming mostly cloudy. Highs in the lower 40s. Southwest Winds 5 to 15 Mph with Gusts to around 30 Mph.

Tonight 18 Dec Western and Central Chouteau County

Windy. Not as cold. Mostly cloudy. Slight chance of snow in the evening. Slight chance of rain in the late evening and early morning. Lows in the lower 30s. South Winds 15 to 25 Mph with Gusts to around 55 Mph increasing to southwest 25 to 35 Mph with Gusts to around 70 Mph after midnight. Chance of precipitation 20 percent.

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Fort Benton Airport Temperature Statistics

December Temperature

Malmstrom Air Force Base (34.8 miles)

  • Lowest 12 December, 2025

    4.3 °F

  • Average December

    35.5 °F

  • Highest 15 December, 2025

    63.1 °F

Climate (2020–Present)

Malmstrom Air Force Base (34.8 miles)

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  • Average Low 2020–2025

    35.6 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    58.3 °F
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