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 >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

37°F

3°C

Humidity 52%
Wind Speed N 12 mph
Barometer 30.05 in (1019.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 8 Apr 9:52 pm MDT
Extended Forecast for

Rapid Valley SD

  • Tonight

    Tonight: Partly cloudy, with a low around 28. North wind around 6 mph becoming calm  in the evening.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 55. Light and variable wind becoming northeast 9 to 14 mph in the morning. Winds could gust as high as 25 mph.

    High: 55 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Northeast wind 8 to 13 mph becoming light and variable  in the evening. Winds could gust as high as 22 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 61. Breezy, with a south wind 5 to 10 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 61 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45. Breezy, with a south wind 17 to 22 mph, with gusts as high as 39 mph.

    Low: 45 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 83. South wind around 16 mph, with gusts as high as 31 mph.

    High: 83 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before midnight.  Mostly cloudy, with a low around 51. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.

    Low: 51 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers after noon.  Mostly sunny, with a high near 78. West wind 10 to 15 mph, with gusts as high as 29 mph.

    High: 78 °F

    Sunny then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, mainly before midnight.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 28. North wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 55. Light and variable wind becoming northeast 9 to 14 mph in the morning. Winds could gust as high as 25 mph.
Thursday Night
Mostly clear, with a low around 28. Northeast wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.
Friday
Mostly sunny, with a high near 61. Breezy, with a south wind 5 to 10 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 40 mph.
Friday Night
Mostly cloudy, with a low around 45. Breezy, with a south wind 17 to 22 mph, with gusts as high as 39 mph.
Saturday
Partly sunny, with a high near 83. South wind around 16 mph, with gusts as high as 31 mph.
Saturday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 51. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Sunday
A slight chance of showers after noon. Mostly sunny, with a high near 78. West wind 10 to 15 mph, with gusts as high as 29 mph.
Sunday Night
A chance of showers, mainly before midnight. Mostly cloudy, with a low around 43.
Monday
Showers likely, mainly after noon. Partly sunny, with a high near 65.
Monday Night
Showers likely. Mostly cloudy, with a low around 34.
Tuesday
Rain and snow showers likely. Mostly cloudy, with a high near 49.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 31.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Rapid Valley SD
 44.06°N 103.15°W (Elev. 3107 ft)
10:12 pm MDT Apr 8, 2026
10pm MDT Apr 8, 2026-6pm MDT Apr 15, 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