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Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Partly Cloudy

60°F

16°C

Humidity 42%
Wind Speed E 20 G 29 mph
Barometer 29.70 in (1003.7 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 12 Apr 11:52 pm MDT
Extended Forecast for

Rapid City Regional Airport SD

Red Flag Warning April 12, 11:58pm until April 13, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning April 12, 11:58pm until April 13, 09:00pm

    NOW until 9:00pm Mon

    Red Flag Warning

  • Tonight

    Low: 44 °F

    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 76. Breezy, with a west wind 6 to 11 mph becoming west 17 to 22 mph in the morning. Winds could gust as high as 36 mph.

    High: 76 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. Breezy, with a northwest wind 16 to 21 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 32 mph.

    Low: 36 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon. Partly sunny, with a high near 68. West wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 17 mph.

    High: 68 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 16 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. Southwest wind 5 to 13 mph becoming south in the afternoon. Winds could gust as high as 23 mph.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers after noon. Mostly sunny, with a high near 73. Breezy, with a southwest wind 14 to 24 mph becoming northwest in the afternoon. Winds could gust as high as 38 mph.

    High: 73 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 44. North wind 5 to 7 mph becoming calm.
Monday
Sunny, with a high near 76. Breezy, with a west wind 6 to 11 mph becoming west 17 to 22 mph in the morning. Winds could gust as high as 36 mph.
Monday Night
Partly cloudy, with a low around 36. Breezy, with a northwest wind 16 to 21 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 32 mph.
Tuesday
A 20 percent chance of showers after noon. Partly sunny, with a high near 68. West wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 17 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 16 mph.
Wednesday
Mostly sunny, with a high near 75. Southwest wind 5 to 13 mph becoming south in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 44. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Thursday
A slight chance of showers after noon. Mostly sunny, with a high near 73. Breezy, with a southwest wind 14 to 24 mph becoming northwest in the afternoon. Winds could gust as high as 38 mph.
Thursday Night
Rain showers likely before 9pm, then rain and snow showers likely between 9pm and 3am, then a chance of snow showers after 3am. Mostly cloudy, with a low around 29. Windy.
Friday
A chance of snow showers. Mostly cloudy, with a high near 44. Breezy.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 23. Blustery.
Saturday
A chance of rain and snow showers. Mostly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rapid City Regional Airport SD
 44.04°N 103.06°W (Elev. 3100 ft)
Last Update:
10:32 pm MDT Apr 12, 2026
Forecast Valid:
11pm MDT Apr 12, 2026-6pm MDT Apr 19, 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