Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

83°F

28°C

Humidity 12%
Wind Speed SW 16 mph
Barometer 29.55 in (998.8 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 11 Apr 5:52 pm MDT
Extended Forecast for

2 Miles ESE New Underwood SD

Red Flag Warning April 11, 06:38pm until April 12, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning April 11, 06:38pm until April 12, 09:00pm

    NOW until 9:00pm Sun

    Red Flag Warning

  • Tonight

    Low: 50 °F

    Isolated
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78. West wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45. West wind 5 to 11 mph becoming east after midnight. Winds could gust as high as 20 mph.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78. Breezy, with a southwest wind 7 to 12 mph increasing to 17 to 22 mph in the morning. Winds could gust as high as 32 mph.

    High: 78 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. Breezy, with a northwest wind 17 to 22 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph.

    Low: 41 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers.  Mostly cloudy, with a high near 64. North wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before midnight.  Mostly cloudy, with a low around 40. Northwest wind 6 to 11 mph becoming southwest after midnight. Winds could gust as high as 18 mph.

    Low: 40 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 73. Southwest wind 6 to 15 mph, with gusts as high as 25 mph.

    High: 73 °F

    Sunny

Detailed Forecast

Tonight
Isolated showers and thunderstorms before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 50. Northwest wind 11 to 15 mph becoming southwest in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 78. West wind 11 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 45. West wind 5 to 11 mph becoming east after midnight. Winds could gust as high as 20 mph.
Monday
Mostly sunny, with a high near 78. Breezy, with a southwest wind 7 to 12 mph increasing to 17 to 22 mph in the morning. Winds could gust as high as 32 mph.
Monday Night
Partly cloudy, with a low around 41. Breezy, with a northwest wind 17 to 22 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 64. North wind 9 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 40. Northwest wind 6 to 11 mph becoming southwest after midnight. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 73. Southwest wind 6 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
A chance of showers after noon. Mostly sunny, with a high near 70. Breezy.
Thursday Night
Rain and snow showers likely. Mostly cloudy, with a low around 29. Blustery.
Friday
A chance of rain and snow showers. Partly sunny, with a high near 45. Breezy.
Friday Night
A slight chance of snow showers. Partly cloudy, with a low around 22. Blustery.
Saturday
A slight chance of rain and snow showers. Mostly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE New Underwood SD
 44.09°N 102.79°W (Elev. 2894 ft)
5:37 pm MDT Apr 11, 2026
6pm MDT Apr 11, 2026-6pm MDT Apr 18, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database