Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

32°F

0°C

Humidity	60%
Wind Speed	NE 3 mph
Barometer	30.05 in
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Last update	28 Jan 3:55 pm MST

More Information:

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

Extended Forecast for

4 Miles SSW Lead SD

Winter Weather Advisory January 29, 05:00am until January 30, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

This Afternoon
High: 40 °F
Cloudy
Tonight
Low: 21 °F
Snow
Thursday
High: 29 °F
Snow
Thursday Night
Low: 17 °F
Snow
Friday
High: 26 °F
Snow then
Snow Likely
Friday Night
Low: 14 °F⇑
Chance Snow
Saturday
High: 38 °F
Chance Snow
Saturday Night
Low: 23 °F
Partly Cloudy
Sunday
High: 40 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Cloudy, with a high near 40. Calm wind.

Tonight

Snow, mainly after 11pm. Low around 21. Wind chill values as low as 14. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Thursday

Snow. High near 29. Wind chill values as low as 12. Northwest wind 8 to 13 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow. Low around 17. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Friday

Snow. High near 26. Calm wind becoming north around 6 mph. Winds could gust as high as 16 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Friday Night

A 30 percent chance of snow. Mostly cloudy, with a temperature falling to near 14 by 9pm, then rising to around 22 during the remainder of the night. Light southwest wind. Winds could gust as high as 16 mph.

Saturday

A 50 percent chance of snow. Partly sunny, with a high near 38. West wind 5 to 9 mph, with gusts as high as 30 mph.

Saturday Night

Partly cloudy, with a low around 23. West wind around 9 mph, with gusts as high as 30 mph.

Sunday

Mostly sunny, with a high near 40.

Sunday Night

Mostly cloudy, with a low around 24.

Monday

Partly sunny, with a high near 43.

Monday Night

A slight chance of snow. Mostly cloudy, with a low around 22.