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

Rapid City, Rapid City Regional Airport (KRAP)

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

Overcast

73°F

23°C

Humidity 59%
Wind Speed Vrbl 3 mph
Barometer 29.99 in (1013.8 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 1 Sep 1:52 pm MDT
Extended Forecast for

Box Elder SD

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms before 3pm. Partly sunny, with a steady temperature around 73. East wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 73 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 57. East wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 94. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 94 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. South wind 11 to 16 mph, with gusts as high as 31 mph.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 94. West wind 7 to 13 mph becoming east in the afternoon. Winds could gust as high as 28 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. Southwest wind 6 to 13 mph, with gusts as high as 26 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms before 3pm. Partly sunny, with a steady temperature around 73. East wind 7 to 11 mph, with gusts as high as 21 mph.
Tonight
A slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 57. East wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 94. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 32 mph.
Wednesday Night
Partly cloudy, with a low around 64. South wind 11 to 16 mph, with gusts as high as 31 mph.
Thursday
Sunny, with a high near 94. West wind 7 to 13 mph becoming east in the afternoon. Winds could gust as high as 28 mph.
Thursday Night
Mostly clear, with a low around 63. Southwest wind 6 to 13 mph, with gusts as high as 26 mph.
Friday
Sunny, with a high near 98.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny, with a high near 96.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 86.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Labor Day
A slight chance of showers. Partly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Box Elder SD
 44.13°N 103.06°W (Elev. 3091 ft)
Last Update:
1:36 pm MDT Sep 1, 2026
Forecast Valid:
2pm MDT Sep 1, 2026-6pm MDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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