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	93%
Wind Speed	W 14 mph
Barometer	30.16 in
Dewpoint	32°F (0°C)
Visibility	6.00 mi
Wind Chill	25°F (-4°C)
Last update	29 Jan 2:15 pm 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 January 29, 02:28pm until January 30, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory January 29, 02:28pm until January 30, 05:00pm
NOW until 5:00pm Fri
Winter Weather Advisory
This Afternoon
High: 25 °F
Snow
Tonight
Low: 18 °F
Snow Likely
Friday
High: 24 °F
Snow Likely
then Chance
Snow
Friday Night
Low: 19 °F⇑
Chance Snow
Saturday
High: 35 °F
Snow Likely
then Slight
Chance Snow
Saturday Night
Low: 24 °F
Mostly Clear
Sunday
High: 37 °F
Mostly Sunny
Sunday Night
Low: 23 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

Snow. High near 25. Wind chill values as low as 12. Northwest wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 3 to 7 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 2 inches possible.

Friday

Snow likely, mainly before 11am. 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 1 to 2 inches possible.

Friday Night

A 40 percent chance of snow after 11pm. Increasing clouds, with a temperature rising to around 25 by 5am. Wind chill values as low as 8. Southwest wind 7 to 10 mph, with gusts as high as 18 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 35. West wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly clear, with a low around 24. West wind around 16 mph, with gusts as high as 30 mph.

Sunday

Mostly sunny, with a high near 37. Northwest wind 5 to 11 mph, with gusts as high as 23 mph.

Sunday Night

Mostly cloudy, with a low around 23. Southwest wind around 7 mph.

Monday

Partly sunny, with a high near 37.

Monday Night

A slight chance of snow. Partly cloudy, with a low around 23.

Tuesday

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