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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair and Breezy

72°F

22°C

Humidity 31%
Wind Speed NW 22 G 33 mph
Barometer 30.24 in (1022.8 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 3 Oct 3:52 pm MDT
Extended Forecast for

Rapid City SD

  • Tonight

    Tonight: Increasing clouds, with a low around 47. North wind 9 to 14 mph becoming light and variable. Winds could gust as high as 30 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 76. Southwest wind 5 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 28 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 52. Southeast wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 52 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 86. Calm wind becoming east around 6 mph. Winds could gust as high as 16 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. Calm wind becoming west 5 to 8 mph in the evening. Winds could gust as high as 17 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. West wind 6 to 13 mph becoming north in the morning. Winds could gust as high as 25 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 47. North wind 9 to 14 mph becoming light and variable. Winds could gust as high as 30 mph.
Sunday
Sunny, with a high near 76. Southwest wind 5 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
Clear, with a low around 52. Southeast wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Monday
Sunny, with a high near 86. Calm wind becoming east around 6 mph. Winds could gust as high as 16 mph.
Monday Night
Mostly clear, with a low around 59. Calm wind becoming west 5 to 8 mph in the evening. Winds could gust as high as 17 mph.
Tuesday
Sunny, with a high near 82. West wind 6 to 13 mph becoming north in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rapid City SD
 44.08°N 103.21°W (Elev. 3189 ft)
Last Update:
3:51 pm MDT Oct 3, 2026
Forecast Valid:
4pm MDT Oct 3, 2026-6pm MDT Oct 10, 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