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

Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska

A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

44°F

7°C

Humidity 49%
Wind Speed Calm
Barometer 30.25 in (1024.3 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 19 Oct 12:52 am MDT
Extended Forecast for

Hermosa SD

  • Overnight

    Overnight: Mostly clear, with a low around 37. Light west wind.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 60. Calm wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 43. Light and variable wind becoming south 5 to 8 mph in the evening. Winds could gust as high as 15 mph.

    Low: 43 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. South wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 47. South wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 18 mph.

    Low: 47 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68. Northwest wind 5 to 7 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 37. Light west wind.
Monday
Sunny, with a high near 60. Calm wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Clear, with a low around 43. Light and variable wind becoming south 5 to 8 mph in the evening. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 76. South wind 6 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Clear, with a low around 47. South wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 68. Northwest wind 5 to 7 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
A slight chance of rain after noon. Partly sunny, with a high near 75. Breezy.
Friday Night
A chance of rain. Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hermosa SD
 43.84°N 103.19°W (Elev. 3383 ft)
Last Update:
12:31 am MDT Oct 19, 2026
Forecast Valid:
1am MDT Oct 19, 2026-6pm MDT Oct 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation