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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Light Rain

63°F

17°C

Humidity 97%
Wind Speed N 12 mph
Barometer 29.99 in (1013.5 mb)
Dewpoint 62°F (17°C)
Visibility 8.00 mi
Last update 12 Aug 9:52 pm MDT
Extended Forecast for

2 Miles WSW Rapid City Regional Airport SD

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 2am. Patchy smoke after 4am. Mostly cloudy, with a low around 58. Northeast wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    Low: 58 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Patchy smoke. Mostly cloudy, with a high near 75. Light east wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 24 mph.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 58. Southeast wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 82. Southeast wind 7 to 13 mph becoming east in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%.

    High: 82 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Northeast wind 6 to 14 mph becoming north in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 50%.

    Low: 58 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 77. North wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 2am. Patchy smoke after 4am. Mostly cloudy, with a low around 58. Northeast wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms. Patchy smoke. Mostly cloudy, with a high near 75. Light east wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 24 mph.
Thursday Night
A chance of showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 58. Southeast wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 82. Southeast wind 7 to 13 mph becoming east in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Northeast wind 6 to 14 mph becoming north in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Saturday
A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 77. North wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 40%.
Sunday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 78.
Sunday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.
Monday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Rapid City Regional Airport SD
 44.04°N 103.12°W (Elev. 3071 ft)
Last Update:
9:41 pm MDT Aug 12, 2026
Forecast Valid:
10pm MDT Aug 12, 2026-6pm MDT Aug 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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