McAllister Weather Forecast

    • 39
    • 54

    Breezy

    • 36
    • 53

    Breezy

    • 22
    • 46

    Rain/Snow

    • 33
    • 42

    Rain/Snow Likely

    • 24
    • 50

    Rain/Snow Likely

    • 22
    • 41

    Slight Chance Snow

Today 15 Dec Madison River Valley

Windy. Mostly sunny in the late morning and early afternoon then becoming mostly cloudy. Highs 49 to 55. South Winds 20 to 30 Mph with Gusts to around 45 Mph.

Tonight 15 Dec Madison River Valley

Windy. Mostly cloudy. Lows 35 to 41. South Winds 20 to 30 Mph with Gusts to around 55 Mph.

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  • Temperature Real-Time

McAllister Temperature Statistics

December Temperature

Ennis - Big Sky Airport (12.4 miles)

  • Lowest 1 December, 2025

    5 °F

  • Average December

    37.8 °F

  • Highest 11 December, 2025

    57.2 °F

Climate (2020–Present)

Ennis - Big Sky Airport (12.4 miles)

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  • Average Low 2020–2025

    31.6 °F

  • Average 2020–2025

    44 °F

  • Average High 2020–2025

    55.8 °F
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