Rapid City Regional Airport Weather Forecast

    • 61
    • 77

    Thunderstorms

    • 60
    • 81

    Chance Thunderstorms

    • 61
    • 85

    Chance Thunderstorms

    • 59
    • 83

    Chance Thunderstorms

    • 62
    • 85

    Slight Chance Thunderstorms

    • 64
    • 89

    Slight Chance Thunderstorms

Today 31 Jul Pennington Co Plains

Mostly cloudy. Scattered Showers and isolated Thunderstorms this Morning, then a slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 70s. Southeast Winds 10 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 31 Jul Pennington Co Plains

Mostly cloudy with scattered Showers and Thunderstorms. Areas of smoke after midnight. Lows in the lower 60s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rapid City Regional Airport Temperature Statistics

July Temperature

Rapid City, Rapid City Regional Airport (0 miles)

  • Lowest 12 July, 2025

    49.6 °F

  • Average July

    73.8 °F

  • Highest 3 July, 2025

    103.6 °F

Climate (2020–Present)

Rapid City, Rapid City Regional Airport (0 miles)

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  • Average Low 2020–2025

    35.1 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    62.1 °F
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