Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Overcast

-9°F

-23°C

Humidity	70%
Wind Speed	E 5 mph
Barometer	30.40 in
Dewpoint	-17°F (-27°C)
Visibility	10.00 mi
Wind Chill	-21°F (-29°C)
Last update	23 Jan 5:55 am MST

More Information:

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

Extended Forecast for

2 Miles SW Lead SD

Today
High: -1 °F
Snow Likely
Tonight
Low: -12 °F
Decreasing
Clouds
Saturday
High: 14 °F
Increasing
Clouds
Saturday Night
Low: -8 °F
Snow Likely
Sunday
High: 4 °F
Chance Snow
then Mostly
Sunny
Sunday Night
Low: -3 °F⇑
Mostly Clear
Monday
High: 31 °F
Sunny
Monday Night
Low: 16 °F
Partly Cloudy
Tuesday
High: 27 °F
Chance Snow

Detailed Forecast

Today

Snow likely, mainly between 11am and 2pm. Cloudy and cold, with a high near -1. Wind chill values as low as -17. Calm wind becoming east around 6 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

Tonight

Mostly cloudy, then gradually becoming mostly clear, with a low around -12. Wind chill values as low as -22. Calm wind becoming southwest around 5 mph after midnight. Winds could gust as high as 16 mph.

Saturday

Increasing clouds, with a high near 14. Wind chill values as low as -22. Southwest wind around 7 mph, with gusts as high as 21 mph.

Saturday Night

Snow likely. Mostly cloudy, with a low around -8. Wind chill values as low as -17. West wind around 6 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Sunday

A 40 percent chance of snow before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 4. Northwest wind 5 to 7 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.

Sunday Night

Mostly clear, with a temperature rising to around 12 by 5am. West wind 5 to 10 mph, with gusts as high as 28 mph.

Monday

Sunny, with a high near 31. West wind around 10 mph, with gusts as high as 30 mph.

Monday Night

Partly cloudy, with a low around 16. West wind around 8 mph, with gusts as high as 24 mph.

Tuesday

A chance of snow, mainly after 11am. Partly sunny, with a high near 27.

Tuesday Night

A chance of snow. Mostly cloudy, with a low around 11.

Wednesday

A chance of snow. Mostly sunny, with a high near 27.