Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday as gusty winds and low relative humidity continue. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

54°F

12°C

Humidity 34%
Wind Speed W 6 mph
Barometer 30.07 in (1017.9 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 19 Mar 7:52 am MDT
Extended Forecast for

2 Miles ESE New Underwood SD

Red Flag Warning March 19, 11:00am until March 19, 07:00pm
Click here for hazard details and duration
Red Flag Warning
  • Today

    Today: Mostly sunny, with a high near 84. Northwest wind 7 to 17 mph, with gusts as high as 24 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 44. West wind 7 to 11 mph, with gusts as high as 17 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. West wind 7 to 11 mph, with gusts as high as 25 mph.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46. Southwest wind 6 to 9 mph.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87. Breezy, with a southwest wind 7 to 12 mph becoming north 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 87 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after midnight.  Mostly cloudy, with a low around 39. Breezy, with a north wind 18 to 22 mph, with gusts as high as 33 mph.

    Low: 39 °F

    Breezy.
    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 56. North wind around 17 mph, with gusts as high as 26 mph.

    High: 56 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. Northeast wind 10 to 15 mph becoming south after midnight. Winds could gust as high as 23 mph.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 84. Northwest wind 7 to 17 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 44. West wind 7 to 11 mph, with gusts as high as 17 mph.
Friday
Mostly sunny, with a high near 81. West wind 7 to 11 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 46. Southwest wind 6 to 9 mph.
Saturday
Sunny, with a high near 87. Breezy, with a southwest wind 7 to 12 mph becoming north 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.
Saturday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 39. Breezy, with a north wind 18 to 22 mph, with gusts as high as 33 mph.
Sunday
Mostly sunny, with a high near 56. North wind around 17 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 31. Northeast wind 10 to 15 mph becoming south after midnight. Winds could gust as high as 23 mph.
Monday
Partly sunny, with a high near 65.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 66.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
Mostly sunny, with a high near 83. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE New Underwood SD
 44.09°N 102.79°W (Elev. 2894 ft)
7:42 am MDT Mar 19, 2026
8am MDT Mar 19, 2026-6pm MDT Mar 25, 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