Sunset Peak Weather Forecast

    • 41
    • 54

    Becoming Sunny

    • 44
    • 59

    Mostly Sunny

    • 45
    • 61

    Partly Sunny

    • 43
    • 61

    Mostly Sunny

    • 38
    • 58

    Partly Sunny

    • 41
    • 58

    Mostly Sunny

    • 45
    • 62

    Mostly Sunny

Today 17 Sep Gallatin and Madison County Mountains and Centennial Mountains

Sunny. Highs 55 to 65. Northeast Winds up to 10 Mph.

Tonight 17 Sep Gallatin and Madison County Mountains and Centennial Mountains

Mostly clear. Lows 35 to 45. Northeast Winds up to 10 Mph shifting to the east after midnight.

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Sunset Peak Temperature Statistics

September Temperature

Dillon, Dillon Airport (34.2 miles)

  • Lowest 5 September, 2025

    42.1 °F

  • Average September

    60.9 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

Dillon, Dillon Airport (34.2 miles)

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  • Average Low 2020–2025

    30.7 °F

  • Average 2020–2025

    42.9 °F

  • Average High 2020–2025

    55.8 °F
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