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.

Freezing Fog

25°F

-4°C

Humidity	100%
Wind Speed	Calm
Barometer	30.24 in
Dewpoint	25°F (-4°C)
Visibility	0.15 mi
Last update	30 Jan 2:55 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 January 30, 03:03am until January 30, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory January 30, 03:03am until January 30, 05:00pm
NOW until 5:00pm Fri
Winter Weather Advisory
Overnight
Low: 22 °F
Chance Snow
and Patchy
Fog
Friday
High: 27 °F
Chance Snow
and Patchy
Fog
Friday Night
Low: 19 °F⇑
Chance Snow
Saturday
High: 35 °F
Snow Likely
then Slight
Chance Snow
Saturday Night
Low: 25 °F
Mostly Clear
Sunday
High: 40 °F
Mostly Sunny
Sunday Night
Low: 26 °F
Mostly Cloudy
Monday
High: 37 °F
Mostly Sunny

Detailed Forecast

Overnight

A 30 percent chance of snow. Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 22. Wind chill values as low as 13. Northwest wind around 7 mph, with gusts as high as 16 mph.

Friday

A 40 percent chance of snow. Patchy fog before 11am. Otherwise, cloudy, with a high near 27. Wind chill values as low as 11. Northwest wind around 6 mph, with gusts as high as 16 mph. New snow accumulation of less than one inch possible.

Friday Night

A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a temperature rising to around 25 by 3am. Wind chill values as low as 10. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.

Saturday

Snow likely, mainly before 11am. Mostly cloudy, with a high near 35. Wind chill values as low as 17. West wind 10 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly clear, with a low around 25. West wind around 16 mph, with gusts as high as 29 mph.

Sunday

Mostly sunny, with a high near 40. Northwest wind 6 to 11 mph, with gusts as high as 24 mph.

Sunday Night

Mostly cloudy, with a low around 26. Southwest wind 7 to 10 mph, with gusts as high as 16 mph.

Monday

Mostly sunny, with a high near 37. Northwest wind 10 to 13 mph, with gusts as high as 28 mph.

Monday Night

A slight chance of snow after 11pm. Partly cloudy, with a low around 24.

Tuesday

A chance of snow. Partly sunny, with a high near 31.