Eaglehead Mountain Weather Forecast

    • 39
    • 55

    Rain Showers Likely

    • 37
    • 53

    Partly Sunny

    • 41
    • 58

    Mostly Sunny

    • 40
    • 57

    Partly Sunny

    • 37
    • 51

    Partly Sunny

    • 37
    • 52

    Chance Rain/Snow

Today 22 Sep Gallatin and Madison County Mountains and Centennial Mountains

Mostly sunny until late afternoon then becoming mostly cloudy. Highs 57 to 67. South Winds up to 10 Mph.

Tonight 22 Sep Gallatin and Madison County Mountains and Centennial Mountains

Mostly cloudy. Chance of rain Showers and slight chance of Thunderstorms in the Evening, then chance of rain Showers after midnight. Lows 38 to 44. Southwest Winds up to 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Eaglehead Mountain Temperature Statistics

September Temperature

Ennis - Big Sky Airport (25.5 miles)

  • Lowest 15 September, 2026

    30.2 °F

  • Average September

    57.9 °F

  • Highest 6 September, 2026

    82.4 °F

Climate (2021–2026)

Ennis - Big Sky Airport (25.5 miles)

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  • Average Low 2021–2026

    32.1 °F

  • Average 2021–2026

    44.5 °F

  • Average High 2021–2026

    56.4 °F
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