South Boulder Airport Weather Forecast

    • 42
    • 69

    Chance Rain Showers

    • 42
    • 68

    Mostly Cloudy

    • 39
    • 65

    Rain Showers

    • 37
    • 63

    Mostly Sunny

    • 40
    • 66

    Partly Sunny

    • 40
    • 65

    Partly Sunny

Today 11 Sep Missouri Headwaters

Cooler. Partly sunny. Slight chance of rain Showers late in the Morning, then chance of rain Showers and slight chance of Thunderstorms early in the afternoon. Highs in the upper 60s. North Winds up to 10 Mph. Gusts up to 25 Mph in the afternoon. Chance of precipitation 50 percent.

Tonight 11 Sep Missouri Headwaters

Mostly cloudy. Patchy fog after midnight. Lows in the mid 40s. North Winds up to 15 Mph with Gusts to around 30 Mph.

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  • Temperature Real-Time

South Boulder Airport Temperature Statistics

September Temperature

Butte, Bert Mooney Airport (28.6 miles)

  • Lowest 9 September, 2026

    32 °F

  • Average September

    56.3 °F

  • Highest 1 September, 2026

    79.6 °F

Climate (2021–2026)

Butte, Bert Mooney Airport (28.6 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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