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

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Overcast

60°F

16°C

Humidity 90%
Wind Speed NE 7 mph
Barometer 30.20 in (1021.2 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 31 Aug 4:52 am MDT
Extended Forecast for

Rapid Valley SD

  • Overnight

    Overnight: A 20 percent chance of showers. Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 60. North wind around 5 mph.

    Low: 60 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Patchy fog before 9am. Otherwise, partly sunny, with a high near 72. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 72 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 51. Northeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 51 °F

    Partly Cloudy
    then Patchy
    Fog

  • Labor Day

    Labor Day: Patchy fog before 9am. Otherwise, sunny, with a high near 82. Light and variable wind becoming northeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Northeast wind 5 to 10 mph becoming southwest in the evening. Winds could gust as high as 15 mph.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85. West wind around 10 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Mostly cloudy, with a low around 54. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 54 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 69. North wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 69 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 60. North wind around 5 mph.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Patchy fog before 9am. Otherwise, partly sunny, with a high near 72. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 51. Northeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Labor Day
Patchy fog before 9am. Otherwise, sunny, with a high near 82. Light and variable wind becoming northeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 56. Northeast wind 5 to 10 mph becoming southwest in the evening. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 85. West wind around 10 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Mostly cloudy, with a low around 54. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 69. North wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rapid Valley SD
 44.06°N 103.15°W (Elev. 3107 ft)
Last Update:
3:29 am MDT Aug 31, 2025
Forecast Valid:
5am MDT Aug 31, 2025-6pm MDT Sep 6, 2025
 
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