Prolonged Extreme Cold; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the Gulf Coast, upper Ohio Valley, Mid-Atlantic, and Southeast U.S. into this weekend. A rapidly deepening storm centered just off the North Carolina coast Friday night through Saturday night will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

Lat: 44.48°NLon: 103.78°WElev: 3898ft.

Overcast

32°F

0°C

Humidity	80%
Wind Speed	W 6 mph
Barometer	30.22 in
Dewpoint	27°F (-3°C)
Visibility	10.00 mi
Wind Chill	26°F (-3°C)
Last update	29 Jan 9:15 pm MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles WSW Lead SD

Winter Weather Advisory January 29, 09:33pm until January 30, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory January 29, 09:33pm until January 30, 05:00pm
NOW until 5:00pm Fri
Winter Weather Advisory
Tonight
Low: 20 °F
Snow Likely
and Patchy
Fog
Friday
High: 27 °F
Snow Likely
and Patchy
Fog
Friday Night
Low: 21 °F⇑
Chance Snow
Saturday
High: 36 °F
Snow Likely
then Slight
Chance Snow
Saturday Night
Low: 26 °F
Mostly Clear
Sunday
High: 37 °F
Mostly Sunny
Sunday Night
Low: 25 °F
Mostly Cloudy
Monday
High: 38 °F
Partly Sunny

Detailed Forecast

Tonight

Snow likely, mainly after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 20. Wind chill values as low as 11. Northwest wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.

Friday

Snow likely, mainly before 8am. Patchy fog before 8am. Otherwise, cloudy, with a high near 27. Wind chill values as low as 12. Northwest wind around 6 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Friday Night

A 40 percent chance of snow after 11pm. Mostly cloudy, with a temperature rising to around 27 by 5am. Wind chill values as low as 12. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.

Saturday

Snow likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 36. Wind chill values as low as 19. West wind 10 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly clear, with a low around 26. West wind 14 to 16 mph, with gusts as high as 31 mph.

Sunday

Mostly sunny, with a high near 37. Northwest wind 5 to 11 mph, with gusts as high as 24 mph.

Sunday Night

Mostly cloudy, with a low around 25. Southwest wind around 7 mph, with gusts as high as 16 mph.

Monday

Partly sunny, with a high near 38. Northwest wind 8 to 10 mph, with gusts as high as 23 mph.

Monday Night

A chance of snow, mainly before 11pm. Partly cloudy, with a low around 24.

Tuesday

A chance of snow. Partly sunny, with a high near 30.