Rapid Valley Weather Forecast

    • 67
    • 89

    Severe Tstms

    • 64
    • 92

    Thunderstorms Likely

    • 62
    • 80

    Rain Showers Likely

    • 63
    • 86

    Chance Thunderstorms

    • 63
    • 92

    Slight Chance Thunderstorms

    • 64
    • 94

    Partly Sunny

    • 64
    • 94

    Mostly Sunny

Today 21 Jul Rapid City

Partly cloudy with isolated Showers and Thunderstorms. Some Thunderstorms may be severe. Highs in the upper 80s. East Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 21 Jul Rapid City

Partly cloudy. A slight chance of Showers and Thunderstorms this evening. Lows in the mid 60s. South Winds 5 to 10 Mph. Chance of rain 20 percent.

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Rapid Valley Temperature Statistics

July Temperature

Rapid City, Rapid City Regional Airport (4.3 miles)

  • Lowest 12 July, 2025

    49.6 °F

  • Average July

    72.8 °F

  • Highest 3 July, 2025

    103.6 °F

Climate (2020–Present)

Rapid City, Rapid City Regional Airport (4.3 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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