Basin Weather Forecast

    • 38
    • 75

    Partly Sunny

    • 36
    • 58

    Partly Sunny

    • 39
    • 61

    Rain Likely

    • 37
    • 60

    Partly Sunny

    • 40
    • 61

    Partly Sunny

    • 38
    • 61

    Mostly Sunny

Today 25 Sep Elkhorn and Boulder Mountains

Sunny. Highs 68 to 78. South Winds 5 to 20 Mph. Gusts up to 30 Mph increasing to 40 Mph in the afternoon.

Tonight 25 Sep Elkhorn and Boulder Mountains

Breezy, Colder. Mostly clear. Lows 34 to 42. West Winds 10 to 25 Mph decreasing to 10 to 15 Mph after midnight. Gusts up to 45 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Basin Temperature Statistics

September Temperature

Butte, Bert Mooney Airport (24.2 miles)

  • Lowest 15 September, 2026

    27.6 °F

  • Average September

    55.3 °F

  • Highest 1 September, 2026

    79.6 °F

Climate (2021–2026)

Butte, Bert Mooney Airport (24.2 miles)

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  • Average Low 2021–2026

    28.5 °F

  • Average 2021–2026

    42.3 °F

  • Average High 2021–2026

    55.7 °F
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