Butte Weather Forecast

    • 47
    • 75

    Slight Chance Thunderstorms

    • 46
    • 73

    Chance Rain

    • 44
    • 74

    Chance Rain

    • 43
    • 69

    Rain Showers Likely

    • 44
    • 67

    Rain Showers Likely

    • 45
    • 65

    Chance Rain

    • 43
    • 67

    Chance Rain

Today 8 Sep Butte/Blackfoot Region

Partly cloudy. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the 70s.

Tonight 8 Sep Butte/Blackfoot Region

Partly cloudy. A 20 percent chance of rain in the evening. Patchy smoke after midnight. Lows in the 40s.

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Butte Temperature Statistics

September Temperature

Butte, Bert Mooney Airport (3.7 miles)

  • Lowest 5 September, 2025

    39.9 °F

  • Average September

    62.5 °F

  • Highest 3 September, 2025

    88 °F

Climate (2020–Present)

Butte, Bert Mooney Airport (3.7 miles)

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  • Average Low 2020–2025

    27.7 °F

  • Average 2020–2025

    41.6 °F

  • Average High 2020–2025

    55 °F
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