Butte Weather Forecast

    • 47
    • 71

    Decreasing Clouds

    • 43
    • 62

    Mostly Cloudy

    • 47
    • 62

    Rain Showers Likely

    • 44
    • 67

    Chance Rain Showers

    • 43
    • 64

    Partly Sunny

    • 45
    • 68

    Chance Rain Showers

Today 11 Sep Eastern McLean

Decreasing Clouds. A slight chance of Showers in the afternoon. Highs in the lower 70s. North Winds 5 to 10 Mph, increasing to 10 to 20 Mph. Chance of rain 20 percent.

Tonight 11 Sep Eastern McLean

Increasing Clouds. Lows in the mid 40s. Northwest Winds 5 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Butte Temperature Statistics

September Temperature

Harvey Municipal Airport (34.2 miles)

  • Lowest 2 September, 2026

    50 °F

  • Average September

    68.1 °F

  • Highest 4 September, 2026

    84.2 °F

Climate (2021–2026)

Harvey Municipal Airport (34.2 miles)

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  • Average Low 2021–2026

    30.4 °F

  • Average 2021–2026

    41.2 °F

  • Average High 2021–2026

    51.8 °F
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