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 Windy

73°F

23°C

Humidity 33%
Wind Speed NW 26 G 40 mph
Barometer 30.22 in (1022.0 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 3 Oct 2:52 pm MDT
Extended Forecast for

Box Elder SD

  • Tonight

    Tonight: Increasing clouds, with a low around 44. North wind 11 to 16 mph becoming light and variable. Winds could gust as high as 30 mph.

    Low: 44 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 76. South wind 6 to 11 mph becoming south 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 50. Southeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

    Low: 50 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 87. Calm wind becoming east around 6 mph. Winds could gust as high as 16 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Light and variable wind becoming west 5 to 8 mph in the evening. Winds could gust as high as 17 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. West wind 7 to 15 mph becoming north in the morning. Winds could gust as high as 26 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 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 44. North wind 11 to 16 mph becoming light and variable. Winds could gust as high as 30 mph.
Sunday
Sunny, with a high near 76. South wind 6 to 11 mph becoming south 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
Clear, with a low around 50. Southeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Monday
Sunny, with a high near 87. Calm wind becoming east around 6 mph. Winds could gust as high as 16 mph.
Monday Night
Mostly clear, with a low around 57. Light and variable 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 7 to 15 mph becoming north in the morning. Winds could gust as high as 26 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 53.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Box Elder SD
 44.1°N 103.09°W (Elev. 3104 ft)
Last Update:
12:31 pm MDT Oct 3, 2026
Forecast Valid:
3pm MDT Oct 3, 2026-6pm MDT Oct 10, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation