High-Impact and Far-Reaching Winter Storm Continues; Cold Expands and Persists

A major winter storm will shift its impacts into the Northeast U.S. with heavy snow through tonight while over the Mid-Atlantic, sleet and freezing rain will diminish. Extremely cold air behind the storm will prolong dangerous travel and infrastructure impacts. Sub-zero low temperatures are expected nearly every morning from the Northern Plains through the Ohio Valley and into the Northeast. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

-5°F

-21°C

Humidity 68%
Wind Speed SW 5 mph
Barometer 30.27 in (1034.1 mb)
Dewpoint -13°F (-25°C)
Visibility 10.00 mi
Wind Chill-16°F (-27°C)
Last update 25 Jan 6:52 pm MST
Extended Forecast for

Hermosa SD

  • Tonight

    Tonight: Mostly clear, with a temperature falling to near -10 by 9pm, then rising to around 1 during the remainder of the night. Wind chill values as low as -23. Southwest wind 3 to 8 mph. Winds could gust as high as 15 mph.

    Low: -10 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 46. Wind chill values as low as -9 early. Southwest wind 10 to 16 mph becoming northwest in the morning. Winds could gust as high as 31 mph.

    High: 46 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. West wind 5 to 7 mph becoming calm  after midnight.

    Low: 10 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 33. Wind chill values as low as 12. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 33 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 17. Southwest wind around 6 mph becoming west after midnight.

    Low: 17 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 41. Northwest wind around 7 mph becoming east in the afternoon. Winds could gust as high as 16 mph.

    High: 41 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. Light and variable wind.

    Low: 19 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 38. Light and variable wind becoming north 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 38 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of snow.  Mostly cloudy, with a low around 12.

    Low: 12 °F

    Slight Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a temperature falling to near -10 by 9pm, then rising to around 1 during the remainder of the night. Wind chill values as low as -23. Southwest wind 3 to 8 mph. Winds could gust as high as 15 mph.
Monday
Sunny, with a high near 46. Wind chill values as low as -9 early. Southwest wind 10 to 16 mph becoming northwest in the morning. Winds could gust as high as 31 mph.
Monday Night
Partly cloudy, with a low around 10. West wind 5 to 7 mph becoming calm after midnight.
Tuesday
Partly sunny, with a high near 33. Wind chill values as low as 12. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 17. Southwest wind around 6 mph becoming west after midnight.
Wednesday
Mostly sunny, with a high near 41. Northwest wind around 7 mph becoming east in the afternoon. Winds could gust as high as 16 mph.
Wednesday Night
Mostly cloudy, with a low around 19. Light and variable wind.
Thursday
Partly sunny, with a high near 38. Light and variable wind becoming north 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 12.
Friday
A slight chance of snow before 11am. Partly sunny, with a high near 37.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 53.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Hermosa SD
 43.82°N 103.19°W (Elev. 3383 ft)
6:36 pm MST Jan 25, 2026
6pm MST Jan 25, 2026-6pm MST Feb 1, 2026
 
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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