National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

Lat: 44.05°NLon: 103.05°WElev: 3202ft.

Mostly Cloudy

66°F

19°C

Humidity 78%
Wind Speed N 7 mph
Barometer 30.16 in (1019.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Aug 7:52 am MDT
Extended Forecast for

Rapid City SD

  • Today

    Today: Scattered showers and thunderstorms, mainly before noon. Partly sunny, with a high near 83. Northwest wind around 6 mph becoming east in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 30%.

    High: 83 °F

    Scattered
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 60. Southeast wind around 6 mph becoming light and variable. Winds could gust as high as 16 mph.

    Low: 60 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 83. Light and variable wind becoming north 5 to 8 mph in the morning. Winds could gust as high as 18 mph.

    High: 83 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southwest wind 3 to 6 mph. Winds could gust as high as 16 mph.

    Low: 58 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after noon. Partly sunny, with a high near 79. Light and variable wind becoming east 5 to 7 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%.

    High: 79 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. North wind around 6 mph becoming southwest in the evening. Winds could gust as high as 16 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly before noon. Partly sunny, with a high near 83. Northwest wind around 6 mph becoming east in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 30%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 60. Southeast wind around 6 mph becoming light and variable. Winds could gust as high as 16 mph.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 83. Light and variable wind becoming north 5 to 8 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southwest wind 3 to 6 mph. Winds could gust as high as 16 mph.
Wednesday
Showers and thunderstorms likely, mainly after noon. Partly sunny, with a high near 79. Light and variable wind becoming east 5 to 7 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%.
Wednesday Night
Mostly clear, with a low around 58. North wind around 6 mph becoming southwest in the evening. Winds could gust as high as 16 mph.
Thursday
Sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rapid City SD
 44.08°N 103.24°W (Elev. 3291 ft)
Last Update:
6:41 am MDT Aug 17, 2026
Forecast Valid:
8am MDT Aug 17, 2026-6pm MDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation