Upper Red Rock Lake Weather Forecast

    • 21
    • 41

    Becoming Sunny

    • 24
    • 45

    Mostly Sunny

    • 29
    • 52

    Partly Sunny

    • 27
    • 51

    Partly Sunny

    • 31
    • 48

    Mostly Cloudy

    • 26
    • 41

    Snow

Today 20 Oct Gallatin and Madison County Mountains and Centennial Mountains

Colder. Mostly cloudy in the morning then clearing. Highs 30 to 40. West Winds 10 to 20 Mph with Gusts to around 35 Mph.

Tonight 20 Oct Gallatin and Madison County Mountains and Centennial Mountains

Mostly clear. Lows 20 to 25. Southwest Winds 5 to 15 Mph.

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Upper Red Rock Lake Temperature Statistics

October Temperature

West Yellowstone (29.8 miles)

  • Lowest 7 October, 2025

    19.4 °F

  • Average October

    40.6 °F

  • Highest 9 October, 2025

    69.8 °F

Climate (2020–Present)

West Yellowstone (29.8 miles)

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  • Average Low 2020–2025

    33.6 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    66 °F
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