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

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

34°F

1°C

Humidity 54%
Wind Speed N 7 mph
Barometer 30.13 in (1024.4 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 28 Jan 8:52 am MST
Extended Forecast for

Rapid City SD

  • Today

    Today: Mostly cloudy, with a temperature rising to near 45 by 11am, then falling to around 33 during the remainder of the day. Northwest wind 5 to 7 mph becoming east in the afternoon.

    High: 45 °F⇓

    Mostly Cloudy

  • Tonight

    Tonight: A 40 percent chance of snow after 11pm. Cloudy, with a low around 21. Calm wind. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow

  • Thursday

    Thursday: Snow likely. Mostly cloudy, with a high near 39. Wind chill values as low as 17. Northwest wind 5 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 15. North wind around 5 mph becoming calm in the evening. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Chance Snow

  • Friday

    Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 26. Light east wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.

    High: 26 °F

    Chance Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a temperature falling to near 14 by 10pm, then rising to around 24 during the remainder of the night. South wind around 7 mph, with gusts as high as 15 mph.

    Low: 14 °F⇑

    Chance Snow

  • Saturday

    Saturday: A chance of rain and snow before 9am, then a chance of rain. Partly sunny, with a high near 47. Southwest wind 6 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 40%.

    High: 47 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28. Northwest wind 8 to 10 mph, with gusts as high as 24 mph.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a temperature rising to near 45 by 11am, then falling to around 33 during the remainder of the day. Northwest wind 5 to 7 mph becoming east in the afternoon.
Tonight
A 40 percent chance of snow after 11pm. Cloudy, with a low around 21. Calm wind. New snow accumulation of less than a half inch possible.
Thursday
Snow likely. Mostly cloudy, with a high near 39. Wind chill values as low as 17. Northwest wind 5 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 15. North wind around 5 mph becoming calm in the evening. New snow accumulation of less than a half inch possible.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 26. Light east wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.
Friday Night
A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a temperature falling to near 14 by 10pm, then rising to around 24 during the remainder of the night. South wind around 7 mph, with gusts as high as 15 mph.
Saturday
A chance of rain and snow before 9am, then a chance of rain. Partly sunny, with a high near 47. Southwest wind 6 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 28. Northwest wind 8 to 10 mph, with gusts as high as 24 mph.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Partly sunny, with a high near 48.
Monday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 28.
Tuesday
A slight chance of rain and snow. Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rapid City SD
 44.08°N 103.24°W (Elev. 3291 ft)
Last Update:
9:23 am MST Jan 28, 2026
Forecast Valid:
9am MST Jan 28, 2026-6pm MST Feb 3, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation