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

Widespread Precipitation and Gusty Winds in the West; Snow from the Great Lakes to the Northeast

A Pacific storm system is expected to bring strong winds and more precipitation to the western U.S., along with the likelihood of snowfall into the Sierra Nevada. Accumulating snow will develop downwind from the Great Lakes into parts of the Northeast through Saturday. Polar air will surge into the eastern half of the country this weekend. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fog

35°F

2°C

Humidity 100%
Wind Speed SE 10 mph
Barometer 30.06 in (1020.4 mb)
Dewpoint 35°F (2°C)
Visibility 0.25 mi
Wind Chill27°F (-3°C)
Last update 12 Nov 9:52 pm MST
Extended Forecast for

4 Miles ENE Keystone SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 54. Southeast wind 3 to 8 mph. Winds could gust as high as 23 mph.

    High: 54 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. South wind 5 to 9 mph, with gusts as high as 22 mph.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 50. South wind 9 to 13 mph, with gusts as high as 31 mph.

    High: 50 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 39. South wind 6 to 11 mph, with gusts as high as 28 mph.

    Low: 39 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 59. Light and variable wind becoming southeast around 6 mph. Winds could gust as high as 16 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 35. Calm wind.
Friday
Partly sunny, with a high near 54. Southeast wind 3 to 8 mph. Winds could gust as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 38. South wind 5 to 9 mph, with gusts as high as 22 mph.
Saturday
Partly sunny, with a high near 50. South wind 9 to 13 mph, with gusts as high as 31 mph.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 39. South wind 6 to 11 mph, with gusts as high as 28 mph.
Sunday
Sunny, with a high near 59. Light and variable wind becoming southeast around 6 mph. Winds could gust as high as 16 mph.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
A chance of rain. Partly sunny, with a high near 49.
Wednesday Night
A chance of rain and snow. Partly cloudy, with a low around 35.
Thursday
Mostly sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Keystone SD
 43.92°N 103.38°W (Elev. 4416 ft)
Last Update:
9:46 pm MST Nov 12, 2026
Forecast Valid:
10pm MST Nov 12, 2026-6pm MST Nov 19, 2026
 
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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