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

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

39°F

4°C

Humidity	45%
Wind Speed	NE 8 mph
Barometer	30.09 in
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Wind Chill	33°F (1°C)
Last update	28 Jan 11:35 am MST

More Information:

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

Extended Forecast for

4 Miles WSW Lead SD

Today
High: 35 °F⇓
Mostly Cloudy
Tonight
Low: 21 °F
Snow
Thursday
High: 22 °F
Snow
Thursday Night
Low: 17 °F
Snow Likely
Friday
High: 23 °F
Snow Likely
Friday Night
Low: 16 °F⇑
Chance Snow
Saturday
High: 34 °F
Chance Snow
Saturday Night
Low: 23 °F
Partly Cloudy
Sunday
High: 36 °F
Mostly Sunny

Detailed Forecast

Today

Mostly cloudy, with a temperature falling to around 26 by 5pm. Northwest wind 5 to 7 mph.

Tonight

Snow, mainly after 11pm. Low around 21. Wind chill values as low as 9. Northwest wind 5 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Thursday

Snow. Steady temperature around 22. Wind chill values as low as 5. Northwest wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow likely. Mostly cloudy, with a low around 17. Wind chill values as low as 10. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Friday

Snow likely, mainly before 11am. Mostly cloudy, with a high near 23. Northwest wind around 6 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Friday Night

A 40 percent chance of snow. Mostly cloudy, with a temperature falling to near 16 by 9pm, then rising to around 23 during the remainder of the night. Southwest wind 7 to 10 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.

Saturday

A 50 percent chance of snow. Mostly cloudy, with a high near 34. West wind 10 to 15 mph, with gusts as high as 30 mph.

Saturday Night

Partly cloudy, with a low around 23. West wind 13 to 16 mph, with gusts as high as 30 mph.

Sunday

Mostly sunny, with a high near 36.

Sunday Night

Partly cloudy, with a low around 23.

Monday

Mostly cloudy, with a high near 39.

Monday Night

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