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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

47°F

8°C

Humidity 69%
Wind Speed E 3 mph
Barometer 30.04 in (1016.1 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 20 Jun 4:52 am MDT
Extended Forecast for

Rapid City SD

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 71. Southeast wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 71 °F

    Partly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Cloudy, with a low around 54. East wind 8 to 13 mph becoming light. Winds could gust as high as 28 mph. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after noon. Cloudy, with a high near 65. Northeast wind 5 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 65 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 50. North wind 5 to 9 mph becoming light and variable in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 71. Light and variable wind becoming southeast 5 to 8 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 71 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before midnight, then a slight chance of showers. Low around 50. East wind 5 to 8 mph becoming northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 80%.

    Low: 50 °F

    Showers then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 71. Southeast wind 5 to 15 mph, with gusts as high as 30 mph.
Tonight
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Cloudy, with a low around 54. East wind 8 to 13 mph becoming light. Winds could gust as high as 28 mph. Chance of precipitation is 60%.
Sunday
Showers likely, with thunderstorms also possible after noon. Cloudy, with a high near 65. Northeast wind 5 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 50. North wind 5 to 9 mph becoming light and variable in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 71. Light and variable wind becoming southeast 5 to 8 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Monday Night
Showers and possibly a thunderstorm before midnight, then a slight chance of showers. Low around 50. East wind 5 to 8 mph becoming northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 80%.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73.
Wednesday Night
A chance of showers and thunderstorms, mainly after midnight. Partly cloudy, with a low around 51.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Rapid City SD
 44.08°N 103.24°W (Elev. 3291 ft)
Last Update:
3:22 am MDT Jun 20, 2026
Forecast Valid:
5am MDT Jun 20, 2026-6pm MDT Jun 26, 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