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.

Unknown Precip

23°F

-5°C

Humidity	100%
Wind Speed	E 6 mph
Barometer	30.38 in
Dewpoint	23°F (-5°C)
Visibility	7.00 mi
Wind Chill	16°F (-9°C)
Last update	30 Jan 10:35 am MST

More Information:

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

Extended Forecast for

2 Miles SW Lead SD

Winter Weather Advisory January 30, 10:50am until January 30, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory January 30, 10:50am until January 30, 05:00pm
NOW until 5:00pm Fri
Winter Weather Advisory
Today
High: 28 °F
Chance Snow
and Patchy
Fog
Tonight
Low: 21 °F⇑
Slight Chance
Snow
Saturday
High: 37 °F
Wintry Mix
Likely then
Slight Chance
Snow
Saturday Night
Low: 28 °F
Partly Cloudy
Sunday
High: 44 °F
Mostly Sunny
Sunday Night
Low: 28 °F
Mostly Cloudy
Monday
High: 42 °F
Mostly Sunny
Monday Night
Low: 27 °F
Slight Chance
Snow

Detailed Forecast

Today

A 30 percent chance of snow. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 28. Wind chill values as low as 15. North wind around 6 mph becoming light and variable in the afternoon. Winds could gust as high as 17 mph.

Tonight

A 20 percent chance of snow after 11pm. Increasing clouds, with a temperature falling to near 21 by 11pm, then rising to around 28 during the remainder of the night. Wind chill values as low as 14. Southwest wind around 6 mph, with gusts as high as 20 mph.

Saturday

Snow likely, possibly mixed with freezing rain, becoming all snow after 7am. Cloudy, then gradually becoming mostly sunny, with a high near 37. Northwest wind 8 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

Saturday Night

Partly cloudy, with a low around 28. Wind chill values as low as 20. West wind 10 to 13 mph, with gusts as high as 33 mph.

Sunday

Mostly sunny, with a high near 44. West wind 3 to 8 mph. Winds could gust as high as 23 mph.

Sunday Night

Mostly cloudy, with a low around 28. Southwest wind around 6 mph, with gusts as high as 18 mph.

Monday

Mostly sunny, with a high near 42. Northwest wind 7 to 10 mph, with gusts as high as 28 mph.

Monday Night

A slight chance of snow after 11pm. Partly cloudy, with a low around 27. West wind around 11 mph, with gusts as high as 31 mph.

Tuesday

A chance of snow. Partly sunny, with a high near 35.