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 this 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.

Mostly Cloudy

38°F

3°C

Humidity 51%
Wind Speed E 7 mph
Barometer 30.04 in (1019.4 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 9 Apr 9:52 am MDT
Extended Forecast for

8 Miles SW Blackhawk SD

  • Today

    Today: Sunny, with a high near 52. Light and variable wind becoming east around 6 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. Northeast wind around 5 mph becoming calm  in the evening. Winds could gust as high as 15 mph.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 57. Light southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 33 mph.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. South wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 30 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 79. Southwest wind 6 to 8 mph, with gusts as high as 24 mph.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before midnight.  Partly cloudy, with a low around 46. West wind 5 to 7 mph, with gusts as high as 26 mph.

    Low: 46 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 73. West wind 6 to 9 mph, with gusts as high as 28 mph.

    High: 73 °F

    Sunny then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers before midnight.  Partly cloudy, with a low around 42. West wind around 5 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 42 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Showers likely, mainly after noon.  Mostly sunny, with a high near 68.

    High: 68 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 52. Light and variable wind becoming east around 6 mph in the afternoon. Winds could gust as high as 21 mph.
Tonight
Mostly clear, with a low around 26. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Friday
Mostly sunny, with a high near 57. Light southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 33 mph.
Friday Night
Mostly cloudy, with a low around 41. South wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 30 mph.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 79. Southwest wind 6 to 8 mph, with gusts as high as 24 mph.
Saturday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 46. West wind 5 to 7 mph, with gusts as high as 26 mph.
Sunday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 73. West wind 6 to 9 mph, with gusts as high as 28 mph.
Sunday Night
A slight chance of showers before midnight. Partly cloudy, with a low around 42. West wind around 5 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Monday
Showers likely, mainly after noon. Mostly sunny, with a high near 68.
Monday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 36.
Tuesday
Showers likely. Partly sunny, with a high near 54.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 33.
Wednesday
A chance of showers. Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SW Blackhawk SD
 44.09°N 103.45°W (Elev. 4505 ft)
9:22 am MDT Apr 9, 2026
10am MDT Apr 9, 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