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

74°F

23°C

Humidity 60%
Wind Speed E 12 mph
Barometer 29.92 in (1011.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 1 Sep 6:52 pm MDT
Extended Forecast for

New Underwood SD

  • Tonight

    Tonight: Partly cloudy, with a low around 57. East wind 5 to 14 mph becoming south after midnight. Winds could gust as high as 21 mph.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 95. Breezy, with a southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 95 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. South wind 10 to 17 mph, with gusts as high as 31 mph.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 95. Southwest wind 7 to 14 mph becoming north in the afternoon. Winds could gust as high as 28 mph.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. Southeast wind 6 to 14 mph, with gusts as high as 26 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 98. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 98 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 57. East wind 5 to 14 mph becoming south after midnight. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 95. Breezy, with a southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph.
Wednesday Night
Partly cloudy, with a low around 64. South wind 10 to 17 mph, with gusts as high as 31 mph.
Thursday
Sunny, with a high near 95. Southwest wind 7 to 14 mph becoming north in the afternoon. Winds could gust as high as 28 mph.
Thursday Night
Mostly clear, with a low around 63. Southeast wind 6 to 14 mph, with gusts as high as 26 mph.
Friday
Sunny, with a high near 98. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 32 mph.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 97.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
A slight chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 88.
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 89. Breezy.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Breezy.
Tuesday
Partly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
New Underwood SD
 44.09°N 102.82°W (Elev. 2894 ft)
Last Update:
6:41 pm MDT Sep 1, 2026
Forecast Valid:
7pm MDT Sep 1, 2026-6pm MDT Sep 8, 2026
 
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Additional Resources

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