Big Sky Weather Forecast

    • 23
    • 29

    Snow Likely

    • 16
    • 30

    Snow

    • 13
    • 27

    Snow

    • 15
    • 25

    Snow

    • 9
    • 25

    Snow

    • 0
    • 20

    Snow Likely

    • 6
    • 19

    Chance Snow

Today 31 Jan Gallatin and Madison County Mountains and Centennial Mountains

Breezy, cloudy. A 50 percent chance of snow in the afternoon. Patchy blowing snow in the afternoon. Visibility one quarter mile or less at Times in the afternoon. Highs 20 to 30. South Winds 15 to 25 Mph with Gusts to around 45 Mph.

Tonight 31 Jan Gallatin and Madison County Mountains and Centennial Mountains

Windy. Mostly cloudy with a 50 percent chance of snow. Patchy blowing snow. Near steady temperature in the mid 20s. Southwest Winds 20 to 30 Mph.

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Big Sky Temperature Statistics

January Temperature

Ennis - Big Sky Airport (13.7 miles)

  • Lowest 20 January, 2025

    -20.2 °F

  • Average January

    19.3 °F

  • Highest 16 January, 2025

    41 °F

Climate (2020–Present)

Ennis - Big Sky Airport (13.7 miles)

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  • Average Low 2020–2025

    31.2 °F

  • Average 2020–2025

    43.6 °F

  • Average High 2020–2025

    55.4 °F
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