Box Elder Weather Forecast

    • 58
    • 93

    Decreasing Clouds

    • 52
    • 85

    Mostly Sunny

    • 52
    • 81

    Mostly Sunny

    • 56
    • 91

    Mostly Sunny

    • 52
    • 87

    Partly Sunny

    • 47
    • 76

    Chance Rain Showers

Today 7 Sep Pennington Co Plains

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Morning, then partly cloudy in the afternoon. Highs in the mid 90s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 7 Sep Pennington Co Plains

Mostly clear. Lows in the upper 50s. West Winds 10 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Real-Time

Box Elder Temperature Statistics

September Temperature

Ellsworth Air Force Base (2.5 miles)

  • Lowest 2 September, 2026

    57.4 °F

  • Average September

    75.8 °F

  • Highest 4 September, 2026

    96.4 °F

Climate (2021–2026)

Ellsworth Air Force Base (2.5 miles)

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  • Average Low 2021–2026

    38 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    61.3 °F
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