Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Overcast

70°F

21°C

Humidity 41%
Wind Speed SW 3 mph
Barometer 30.31 in (1024.7 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 23 Aug 11:52 am MDT
Extended Forecast for

Hermosa SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 75. East wind around 5 mph.

    High: 75 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between midnight and 3am.  Partly cloudy, with a low around 54. East wind around 5 mph becoming north after midnight.  Chance of precipitation is 20%.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 74. North wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

    High: 74 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. East wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 15 mph.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52. Southeast wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 75. East wind around 5 mph.
Tonight
A slight chance of showers and thunderstorms between midnight and 3am. Partly cloudy, with a low around 54. East wind around 5 mph becoming north after midnight. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 74. North wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 51. East wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 15 mph.
Monday
Mostly sunny, with a high near 76. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 52. Southeast wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 80. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.
Wednesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Hermosa SD
 43.84°N 103.19°W (Elev. 3383 ft)
9:29 am MDT Aug 23, 2025
12pm MDT Aug 23, 2025-6pm MDT Aug 29, 2025
 
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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