Sunset Peak Weather Forecast

    • 18
    • 32

    Breezy

    • 28
    • 42

    Slight Chance Snow

    • 29
    • 43

    Chance Snow

    • 30
    • 45

    Partly Sunny

    • 33
    • 52

    Partly Sunny

    • 37
    • 58

    Partly Sunny

Today 18 May Gallatin and Madison County Mountains and Centennial Mountains

Breezy. Partly sunny. Slight chance of snow in the Morning, then slight chance of snow Showers in the afternoon. Highs 30 to 42. North Winds 10 to 25 Mph. Gusts up to 60 Mph decreasing to 40 Mph in the afternoon. Chance of snow 20 percent.

Tonight 18 May Gallatin and Madison County Mountains and Centennial Mountains

Mostly clear. Lows 16 to 22. North Winds 5 to 10 Mph with Gusts to around 35 Mph shifting to the southwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunset Peak Temperature Statistics

May Temperature

Dillon, Dillon Airport (34.2 miles)

  • Lowest 6 May, 2026

    23.6 °F

  • Average May

    54.2 °F

  • Highest 12 May, 2026

    85.6 °F

Climate (2021–Present)

Dillon, Dillon Airport (34.2 miles)

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  • Average Low 2021–2026

    31.6 °F

  • Average 2021–2026

    43.9 °F

  • Average High 2021–2026

    57 °F
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