Fan Mountain Weather Forecast

    • 49
    • 70

    Mostly Sunny

    • 48
    • 74

    Slight Chance Thunderstorms

    • 48
    • 72

    Chance Thunderstorms

    • 43
    • 67

    Chance Thunderstorms

    • 41
    • 60

    Rain Showers Likely

    • 40
    • 62

    Chance Thunderstorms

    • 43
    • 63

    Slight Chance Thunderstorms

Today 30 Jun Gallatin and Madison County Mountains and Centennial Mountains

Warmer, sunny. Highs 70 to 80. Southeast Winds up to 10 Mph shifting to the southwest in the afternoon.

Tonight 30 Jun Gallatin and Madison County Mountains and Centennial Mountains

Mostly clear. Lows 50 to 55. South Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fan Mountain Temperature Statistics

June Temperature

Ennis - Big Sky Airport (6.2 miles)

  • Lowest 3 June, 2025

    30.2 °F

  • Average June

    59.5 °F

  • Highest 9 June, 2025

    86 °F

Climate (2020–Present)

Ennis - Big Sky Airport (6.2 miles)

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  • Average Low 2020–2025

    31.3 °F

  • Average 2020–2025

    43.7 °F

  • Average High 2020–2025

    55.6 °F
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