Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Light Snow

34°F

1°C

Humidity	100%
Wind Speed	W 13 G 20 mph
Barometer	30.16 in
Dewpoint	34°F (1°C)
Visibility	1.75 mi
Wind Chill	25°F (-4°C)
Last update	29 Jan 10:35 am MST

More Information:

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

Extended Forecast for

4 Miles WSW Lead SD

Winter Weather Advisory until January 30, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory until January 30, 05:00pm
NOW until 5:00pm Fri
Winter Weather Advisory
Today
High: 25 °F
Heavy Snow
Tonight
Low: 18 °F
Snow Likely
Friday
High: 24 °F
Snow Likely
then Chance
Snow
Friday Night
Low: 17 °F⇑
Chance Snow
Saturday
High: 33 °F
Snow Likely
Saturday Night
Low: 23 °F
Partly Cloudy
Sunday
High: 36 °F
Mostly Sunny
Sunday Night
Low: 22 °F
Mostly Cloudy

Detailed Forecast

Today

Snow. The snow could be heavy at times. High near 25. Wind chill values as low as 11. Northwest wind 11 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 4 to 8 inches possible.

Tonight

Snow likely, mainly before 9pm. Mostly cloudy, with a low around 18. Wind chill values as low as 9. Northwest wind 7 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow likely, mainly before 11am. Mostly cloudy, with a high near 24. Wind chill values as low as 10. Northwest wind around 6 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Friday Night

A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a temperature falling to near 17 by 9pm, then rising to around 24 during the remainder of the night. Wind chill values as low as 8. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

Saturday

Snow likely, mainly before 11am. Mostly cloudy, with a high near 33. West wind 10 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday Night

Partly cloudy, with a low around 23. West wind 15 to 17 mph, with gusts as high as 31 mph.

Sunday

Mostly sunny, with a high near 36. West wind 6 to 14 mph, with gusts as high as 25 mph.

Sunday Night

Mostly cloudy, with a low around 22. Southwest wind around 7 mph.

Monday

Mostly cloudy, with a high near 37.

Monday Night

A slight chance of snow. Mostly cloudy, with a low around 21.

Tuesday

A chance of snow. Partly sunny, with a high near 28.