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

Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

41°F

5°C

Humidity 45%
Wind Speed N 12 mph
Barometer 30.03 in (1018.3 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 8 Apr 8:52 pm MDT
Extended Forecast for

Rapid City SD

  • Tonight

    Tonight: Partly cloudy, with a low around 31. North wind around 6 mph becoming calm in the evening.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 56. Light and variable wind becoming northeast 6 to 11 mph in the morning. Winds could gust as high as 24 mph.

    High: 56 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. Northeast wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 60. Breezy, with a light south wind increasing to 15 to 20 mph in the morning. Winds could gust as high as 38 mph.

    High: 60 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46. South wind 14 to 18 mph, with gusts as high as 36 mph.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 82. South wind 11 to 14 mph, with gusts as high as 31 mph.

    High: 82 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 52. South wind around 10 mph becoming west after midnight. Winds could gust as high as 22 mph.

    Low: 52 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers, mainly after noon. Mostly sunny, with a high near 76. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 76 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Partly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. North wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 56. Light and variable wind becoming northeast 6 to 11 mph in the morning. Winds could gust as high as 24 mph.
Thursday Night
Mostly clear, with a low around 30. Northeast wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.
Friday
Mostly sunny, with a high near 60. Breezy, with a light south wind increasing to 15 to 20 mph in the morning. Winds could gust as high as 38 mph.
Friday Night
Mostly cloudy, with a low around 46. South wind 14 to 18 mph, with gusts as high as 36 mph.
Saturday
Partly sunny, with a high near 82. South wind 11 to 14 mph, with gusts as high as 31 mph.
Saturday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 52. South wind around 10 mph becoming west after midnight. Winds could gust as high as 22 mph.
Sunday
A chance of showers, mainly after noon. Mostly sunny, with a high near 76. West wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
A chance of showers. Partly cloudy, with a low around 46.
Monday
Showers likely, mainly after noon. Partly sunny, with a high near 62.
Monday Night
Rain and snow showers likely. Mostly cloudy, with a low around 31.
Tuesday
Rain and snow showers likely. Mostly cloudy, with a high near 48.
Tuesday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 29.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rapid City SD
 44.08°N 103.24°W (Elev. 3291 ft)
Last Update:
6:27 pm MDT Apr 8, 2026
Forecast Valid:
9pm MDT Apr 8, 2026-6pm MDT Apr 15, 2026
 
Forecast Discussion
 
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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