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 >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

28°F

-2°C

Humidity	59%
Wind Speed	W 3 mph
Barometer	30.19 in
Dewpoint	16°F (-9°C)
Visibility	10.00 mi
Last update	27 Jan 8:35 pm MST

More Information:

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

Extended Forecast for

6 Miles WSW Lead SD

Tonight
Low: 18 °F
Mostly Clear
Wednesday
High: 37 °F
Increasing
Clouds
Wednesday Night
Low: 20 °F
Snow Likely
Thursday
High: 31 °F
Snow
Thursday Night
Low: 17 °F
Snow
Friday
High: 27 °F
Snow Likely
Friday Night
Low: 15 °F
Chance Snow
Saturday
High: 38 °F
Chance Snow
Saturday Night
Low: 23 °F
Slight Chance
Snow then
Partly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 18. Calm wind. Winds could gust as high as 18 mph.

Wednesday

Increasing clouds, with a high near 37. Calm wind.

Wednesday Night

Snow likely, mainly after 11pm. Cloudy, with a low around 20. Calm wind. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Thursday

Snow. High near 31. Wind chill values as low as 15. Light west wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Thursday Night

Snow. Low around 17. Calm wind. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

Friday

Snow likely, mainly before 11am. Mostly cloudy, with a high near 27. Light and variable wind. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Friday Night

A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 15. Calm wind. Winds could gust as high as 15 mph.

Saturday

A chance of snow. Mostly cloudy, with a high near 38. West wind 3 to 8 mph. Winds could gust as high as 26 mph.

Saturday Night

A slight chance of snow before 11pm. Mostly cloudy, with a low around 23.

Sunday

Mostly sunny, with a high near 39.

Sunday Night

Partly cloudy, with a low around 22.

Monday

Partly sunny, with a high near 44.