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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.

A Few Clouds

77°F

25°C

Humidity 14%
Wind Speed W 13 mph
Barometer 29.63 in (1001.3 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 12 Apr 2:52 pm MDT
Extended Forecast for

Rapid City SD

Red Flag Warning April 12, 02:55pm until April 13, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning April 12, 02:55pm until April 13, 09:00pm

    NOW until 9:00pm Mon

    Red Flag Warning

  • This Afternoon

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 47. Northwest wind around 5 mph becoming calm. Winds could gust as high as 17 mph.

    Low: 47 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 74. Breezy, with a southwest wind 6 to 11 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 74 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. Breezy, with a northwest wind 16 to 21 mph becoming light and variable after midnight. Winds could gust as high as 29 mph.

    Low: 41 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 66. Light and variable wind becoming northeast 5 to 7 mph in the morning. Winds could gust as high as 16 mph.

    High: 66 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41. East wind around 6 mph becoming light and variable.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Southwest wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48. Southwest wind 8 to 10 mph, with gusts as high as 22 mph.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 76. West wind 6 to 10 mph, with gusts as high as 23 mph.
Tonight
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 47. Northwest wind around 5 mph becoming calm. Winds could gust as high as 17 mph.
Monday
Mostly sunny, with a high near 74. Breezy, with a southwest wind 6 to 11 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph.
Monday Night
Partly cloudy, with a low around 41. Breezy, with a northwest wind 16 to 21 mph becoming light and variable after midnight. Winds could gust as high as 29 mph.
Tuesday
Partly sunny, with a high near 66. Light and variable wind becoming northeast 5 to 7 mph in the morning. Winds could gust as high as 16 mph.
Tuesday Night
Partly cloudy, with a low around 41. East wind around 6 mph becoming light and variable.
Wednesday
Mostly sunny, with a high near 72. Southwest wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 48. Southwest wind 8 to 10 mph, with gusts as high as 22 mph.
Thursday
A chance of showers after noon. Mostly sunny, with a high near 72.
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.
Friday
Snow showers likely. Mostly cloudy, with a high near 42. Breezy.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 25.
Saturday
A chance of snow showers. Mostly sunny, with a high near 52.
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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:
12:32 pm MDT Apr 12, 2026
Forecast Valid:
2pm MDT Apr 12, 2026-6pm MDT Apr 18, 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