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.

Fair

86°F

30°C

Humidity 36%
Wind Speed E 5 mph
Barometer 29.98 in (1012.3 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 8 Aug 11:52 am MDT
Extended Forecast for

Rapid City SD

  • This Afternoon

    This Afternoon: Areas of smoke. Mostly sunny and hot, with a high near 100. Northeast wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 100 °F

    Areas Smoke

  • Tonight

    Tonight: Widespread smoke, mainly before midnight. Mostly clear, with a low around 66. Northeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 66 °F

    Smoke

  • Sunday

    Sunday: Areas of smoke. Mostly sunny, with a high near 91. Northwest wind 6 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 28 mph.

    High: 91 °F

    Areas Smoke

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight. Areas of smoke. Partly cloudy, with a low around 64. East wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 29 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Areas Smoke

  • Monday

    Monday: Sunny, with a high near 94. Light and variable wind becoming east 8 to 13 mph in the morning. Winds could gust as high as 26 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 65. East wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.

    Low: 65 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
Areas of smoke. Mostly sunny and hot, with a high near 100. Northeast wind 7 to 9 mph, with gusts as high as 20 mph.
Tonight
Widespread smoke, mainly before midnight. Mostly clear, with a low around 66. Northeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Sunday
Areas of smoke. Mostly sunny, with a high near 91. Northwest wind 6 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Areas of smoke. Partly cloudy, with a low around 64. East wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 29 mph.
Monday
Sunny, with a high near 94. Light and variable wind becoming east 8 to 13 mph in the morning. Winds could gust as high as 26 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 65. East wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92.
Tuesday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 63.
Wednesday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 84.
Wednesday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 59.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74.
Thursday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 57.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74.
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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:
12:37 pm MDT Aug 8, 2026
Forecast Valid:
12pm MDT Aug 8, 2026-6pm MDT Aug 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation