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

Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. this week. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England today. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

92°F

33°C

Humidity 38%
Wind Speed S 13 G 22 mph
Barometer 29.96 in (1010.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 29 Jul 10:52 am MDT
Extended Forecast for

3 Miles SSE Blackhawk SD

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Southeast wind 11 to 14 mph, with gusts as high as 28 mph.

    High: 96 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 68. South wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.

    Low: 68 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after noon. Cloudy through mid morning, then gradual clearing, with a high near 88. Light northwest wind becoming north 11 to 16 mph in the morning. Winds could gust as high as 31 mph. Chance of precipitation is 60%.

    High: 88 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. North wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Light and variable wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. Southeast wind around 8 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Saturday Night

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

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Southeast wind 11 to 14 mph, with gusts as high as 28 mph.
Tonight
A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 68. South wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Thursday
Showers and thunderstorms likely, mainly after noon. Cloudy through mid morning, then gradual clearing, with a high near 88. Light northwest wind becoming north 11 to 16 mph in the morning. Winds could gust as high as 31 mph. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 61. North wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.
Friday
Sunny, with a high near 90. Light and variable wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
Mostly clear, with a low around 64. Southeast wind around 8 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny and hot, with a high near 101.
Sunday Night
Mostly clear, with a low around 71.
Monday
Mostly sunny, with a high near 88. Breezy.
Monday Night
A slight chance of showers. Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Blackhawk SD
 44.12°N 103.3°W (Elev. 3599 ft)
Last Update:
10:36 am MDT Jul 29, 2026
Forecast Valid:
11am MDT Jul 29, 2026-6pm MDT Aug 4, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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