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

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Light Snow

1°F

-17°C

Humidity	78%
Wind Speed	N 7 mph
Barometer	30.34 in
Dewpoint	-4°F (-20°C)
Visibility	5.00 mi
Wind Chill	-12°F (-24°C)
Last update	22 Jan 7:55 pm MST

More Information:

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

Extended Forecast for

10 Miles SSE Colony WY

Cold Weather Advisory until January 23, 12:00pm

Click here for hazard details and duration

Cold Weather Advisory

Cold Weather Advisory until January 23, 12:00pm
NOW until 12:00pm Fri
Cold Weather Advisory
Tonight
Low: -9 °F
Chance Snow
Friday
High: 3 °F
Chance Snow
Friday Night
Low: -9 °F
Gradual
Clearing
Saturday
High: 19 °F
Increasing
Clouds
Saturday Night
Low: -5 °F
Slight Chance
Snow then
Mostly Cloudy
Sunday
High: 12 °F
Mostly Sunny
Sunday Night
Low: -2 °F
Mostly Clear
Monday
High: 36 °F
Sunny

Detailed Forecast

Tonight

A chance of snow before 11pm, then a slight chance of snow after 5am. Mostly cloudy, with a low around -9. Wind chill values as low as -21. North wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 30%.

Friday

A 50 percent chance of snow, mainly after 8am. Cloudy, with a high near 3. Wind chill values as low as -24. East wind 7 to 10 mph, with gusts as high as 17 mph. New snow accumulation of less than a half inch possible.

Friday Night

Cloudy during the early evening, then gradual clearing, with a low around -9. Wind chill values as low as -17. East wind around 5 mph becoming calm in the evening.

Saturday

Increasing clouds, with a high near 19. Wind chill values as low as -19. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 16 mph.

Saturday Night

A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around -5. Northwest wind 5 to 7 mph.

Sunday

Mostly sunny, with a high near 12. Northwest wind 6 to 10 mph, with gusts as high as 15 mph.

Sunday Night

Mostly clear, with a low around -2. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.

Monday

Sunny, with a high near 36. West wind 13 to 17 mph, with gusts as high as 26 mph.

Monday Night

Partly cloudy, with a low around 13.

Tuesday

Partly sunny, with a high near 31.