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

Areas of Severe Thunderstorms and Excessive Rainfall; Heat Wave Builds in the Intermountain West and Plains

A slow moving front will bring rounds of strong to severe thunderstorms and heavy rainfall to the central Plains eastward to the east-central U.S.. The first widespread significant heat wave of summer for the Intermountain West and Plains is expected to develop today and expand through next week. Dangerous heat will continue to impact portions of the Southwest and Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

95°F

35°C

Humidity 17%
Wind Speed E 8 mph
Barometer 29.95 in (1011.1 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 10 Jul 4:52 pm MDT
Extended Forecast for

Blackhawk SD

Fire Weather Watch July 12, 10:00am until July 12, 08:00pm
Heat Advisory July 11, 12:00pm until July 14, 08:00pm
Click here for hazard details and duration
Fire Weather Watch
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 68. South wind 8 to 10 mph, with gusts as high as 23 mph.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 99. South wind 8 to 17 mph, with gusts as high as 23 mph.

    High: 99 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. Southeast wind 7 to 14 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 104. Southwest wind 6 to 16 mph becoming southeast in the morning. Winds could gust as high as 29 mph.

    High: 104 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. South wind 13 to 16 mph, with gusts as high as 31 mph.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 104. South wind 13 to 18 mph, with gusts as high as 32 mph.

    High: 104 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 103.

    High: 103 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 68. South wind 8 to 10 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 99. South wind 8 to 17 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 69. Southeast wind 7 to 14 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny and hot, with a high near 104. Southwest wind 6 to 16 mph becoming southeast in the morning. Winds could gust as high as 29 mph.
Sunday Night
Mostly clear, with a low around 72. South wind 13 to 16 mph, with gusts as high as 31 mph.
Monday
Sunny and hot, with a high near 104. South wind 13 to 18 mph, with gusts as high as 32 mph.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Sunny and hot, with a high near 103.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 68.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Blackhawk SD
 44.16°N 103.31°W (Elev. 3514 ft)
Last Update:
4:17 pm MDT Jul 10, 2026
Forecast Valid:
5pm MDT Jul 10, 2026-6pm MDT Jul 17, 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