Belle Fourche Weather Forecast

    • 51
    • 77

    Thunderstorms Likely

    • 37
    • 72

    Mostly Sunny

    • 45
    • 71

    Mostly Sunny

    • 42
    • 75

    Partly Sunny

    • 44
    • 73

    Chance Rain Showers

    • 42
    • 75

    Slight Chance Rain Showers

Today 13 Sep Southern Campbell

Partly cloudy this Morning, then clearing. Breezy with Highs in the upper 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph, increasing to 15 to 25 Mph with Gusts up to 35 Mph this afternoon.

Tonight 13 Sep Southern Campbell

Partly cloudy. Showers and Thunderstorms likely in the Evening, then a chance of Showers and Thunderstorms after midnight. Breezy with Lows in the lower 50s. South Winds 20 to 30 Mph with Gusts up to 40 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Belle Fourche Temperature Statistics

September Temperature

Gillette, Gillette-Campbell County Airport (28.6 miles)

  • Lowest 9 September, 2026

    44.7 °F

  • Average September

    70.3 °F

  • Highest 6 September, 2026

    97.6 °F

Climate (2021–2026)

Gillette, Gillette-Campbell County Airport (28.6 miles)

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  • Average Low 2021–2026

    35 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    61.6 °F
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