Hollow Top Lake Weather Forecast

    • 20
    • 26

    Increasing Clouds

    • 25
    • 32

    Mostly Sunny

    • 26
    • 35

    Partly Sunny

    • 25
    • 31

    Mostly Cloudy

    • 25
    • 31

    Mostly Cloudy

    • 22
    • 31

    Chance Snow

    • 19
    • 28

    Partly Sunny

Today 29 Dec Gallatin and Madison County Mountains and Centennial Mountains

Not as cold. Sunny. Highs 21 to 31. Southwest Winds 5 to 10 Mph with Gusts to around 25 Mph.

Tonight 29 Dec Gallatin and Madison County Mountains and Centennial Mountains

Partly cloudy. Near steady temperature around 18. Southwest Winds 5 to 10 Mph with Gusts to around 30 Mph.

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  • Temperature Real-Time

Hollow Top Lake Temperature Statistics

December Temperature

Ennis - Big Sky Airport (28 miles)

  • Lowest 27 December, 2025

    3.2 °F

  • Average December

    38.4 °F

  • Highest 14 December, 2025

    60.8 °F

Climate (2020–Present)

Ennis - Big Sky Airport (28 miles)

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  • Average Low 2020–2025

    31.7 °F

  • Average 2020–2025

    44 °F

  • Average High 2020–2025

    55.9 °F
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