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 >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

17°F

-8°C

Humidity 74%
Wind Speed NW 5 mph
Barometer 30.12 in (1024.1 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 28 Jan 3:52 am MST
Extended Forecast for

2 Miles ESE New Underwood SD

  • Today

    Today: Partly sunny, with a high near 39. Wind chill values as low as 8. Calm wind becoming east 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after 11pm. Cloudy, with a low around 16. East wind 3 to 6 mph. New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Chance Snow

  • Thursday

    Thursday: Snow likely. Mostly cloudy, with a high near 37. Wind chill values as low as 10. Southwest wind 5 to 10 mph becoming north 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 12. Wind chill values as low as 5. East wind 6 to 8 mph, with gusts as high as 15 mph. New snow accumulation of less than a half inch possible.

    Low: 12 °F

    Chance Snow

  • Friday

    Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 22. East wind 8 to 14 mph, with gusts as high as 23 mph. New snow accumulation of less than a half inch possible.

    High: 22 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a temperature falling to near 9 by 10pm, then rising to around 18 during the remainder of the night. South wind 11 to 13 mph, with gusts as high as 22 mph.

    Low: 9 °F⇑

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow before 9am, then a chance of rain and snow between 9am and 10am, then a chance of rain after 10am. Partly sunny, with a high near 46. South wind 10 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 40%.

    High: 46 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. Northwest wind 13 to 15 mph, with gusts as high as 25 mph.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 39. Wind chill values as low as 8. Calm wind becoming east 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph.
Tonight
A 40 percent chance of snow, mainly after 11pm. Cloudy, with a low around 16. East wind 3 to 6 mph. New snow accumulation of less than a half inch possible.
Thursday
Snow likely. Mostly cloudy, with a high near 37. Wind chill values as low as 10. Southwest wind 5 to 10 mph becoming north 11 to 16 mph in the afternoon. Winds could gust as high as 26 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 12. Wind chill values as low as 5. East wind 6 to 8 mph, with gusts as high as 15 mph. New snow accumulation of less than a half inch possible.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 22. East wind 8 to 14 mph, with gusts as high as 23 mph. New snow accumulation of less than a half inch possible.
Friday Night
Mostly cloudy, with a temperature falling to near 9 by 10pm, then rising to around 18 during the remainder of the night. South wind 11 to 13 mph, with gusts as high as 22 mph.
Saturday
A chance of snow before 9am, then a chance of rain and snow between 9am and 10am, then a chance of rain after 10am. Partly sunny, with a high near 46. South wind 10 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 24. Northwest wind 13 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Partly sunny, with a high near 45.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
A slight chance of rain and snow. Partly sunny, with a high near 45. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE New Underwood SD
 44.09°N 102.79°W (Elev. 2894 ft)
Last Update:
4:41 am MST Jan 28, 2026
Forecast Valid:
4am MST Jan 28, 2026-6pm MST Feb 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation