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.

Fair

75°F

24°C

Humidity 45%
Wind Speed S 16 G 22 mph
Barometer 30.02 in (1014.9 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 25 Sep 1:52 pm MDT
Extended Forecast for

8 Miles N New Underwood SD

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 76. Southeast wind 14 to 16 mph, with gusts as high as 31 mph.

    High: 76 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. Southeast wind 8 to 17 mph, with gusts as high as 31 mph.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 75. Breezy, with a southwest wind 5 to 10 mph becoming northwest 17 to 22 mph in the morning. Winds could gust as high as 37 mph.

    High: 75 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 51. North wind 3 to 8 mph. Winds could gust as high as 17 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 75. Northeast wind 5 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 24 mph.

    High: 75 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. East wind 10 to 17 mph becoming south after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    Showers

  • Monday

    Monday: A 50 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 73.

    High: 73 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly before midnight. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 76. Southeast wind 14 to 16 mph, with gusts as high as 31 mph.
Tonight
Mostly cloudy, with a low around 55. Southeast wind 8 to 17 mph, with gusts as high as 31 mph.
Saturday
Sunny, with a high near 75. Breezy, with a southwest wind 5 to 10 mph becoming northwest 17 to 22 mph in the morning. Winds could gust as high as 37 mph.
Saturday Night
Increasing clouds, with a low around 51. North wind 3 to 8 mph. Winds could gust as high as 17 mph.
Sunday
Mostly cloudy, with a high near 75. Northeast wind 5 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. East wind 10 to 17 mph becoming south after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 40%.
Monday
A 50 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 73.
Monday Night
A chance of showers, mainly before midnight. Mostly cloudy, with a low around 52.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles N New Underwood SD
 44.22°N 102.83°W (Elev. 2802 ft)
Last Update:
2:02 pm MDT Sep 25, 2026
Forecast Valid:
2pm MDT Sep 25, 2026-6pm MDT Oct 1, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation