Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Mostly Cloudy and Breezy

43°F

6°C

Humidity 40%
Wind Speed NW 25 G 40 mph
Barometer 29.97 in (1017.0 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 17 Apr 1:52 pm MDT
Extended Forecast for

Rapid Valley SD

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 45. Breezy, with a northwest wind 26 to 29 mph, with gusts as high as 46 mph.

    High: 45 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 23. Wind chill values as low as 16. Blustery, with a northwest wind 19 to 24 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 39 mph.

    Low: 23 °F

    Mostly Clear
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 54. Wind chill values as low as 17 early. Breezy, with a northwest wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 54 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Northwest wind 12 to 17 mph becoming light and variable  after midnight. Winds could gust as high as 32 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65. Light and variable wind becoming east 9 to 14 mph in the morning. Winds could gust as high as 24 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. East wind 6 to 13 mph becoming southwest after midnight. Winds could gust as high as 23 mph.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 79. Southwest wind 7 to 15 mph becoming north in the afternoon. Winds could gust as high as 28 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43. North wind 5 to 13 mph becoming southwest after midnight. Winds could gust as high as 23 mph.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 45. Breezy, with a northwest wind 26 to 29 mph, with gusts as high as 46 mph.
Tonight
Partly cloudy, with a low around 23. Wind chill values as low as 16. Blustery, with a northwest wind 19 to 24 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 39 mph.
Saturday
Mostly sunny, with a high near 54. Wind chill values as low as 17 early. Breezy, with a northwest wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph.
Saturday Night
Mostly clear, with a low around 29. Northwest wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 32 mph.
Sunday
Sunny, with a high near 65. Light and variable wind becoming east 9 to 14 mph in the morning. Winds could gust as high as 24 mph.
Sunday Night
Mostly clear, with a low around 35. East wind 6 to 13 mph becoming southwest after midnight. Winds could gust as high as 23 mph.
Monday
Mostly sunny, with a high near 79. Southwest wind 7 to 15 mph becoming north in the afternoon. Winds could gust as high as 28 mph.
Monday Night
Partly cloudy, with a low around 43. North wind 5 to 13 mph becoming southwest after midnight. Winds could gust as high as 23 mph.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 86.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 48.
Thursday
A chance of showers. Mostly sunny, with a high near 68. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Rapid Valley SD
 44.06°N 103.15°W (Elev. 3107 ft)
12:32 pm MDT Apr 17, 2026
2pm MDT Apr 17, 2026-6pm MDT Apr 23, 2026
 
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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