Prolonged Extreme Cold; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the Gulf Coast, upper Ohio Valley, Mid-Atlantic, and Southeast U.S. into this weekend. A rapidly deepening storm centered just off the North Carolina coast Friday night through Saturday night will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Overcast

32°F

0°C

Humidity	80%
Wind Speed	W 6 mph
Barometer	30.22 in
Dewpoint	27°F (-3°C)
Visibility	10.00 mi
Wind Chill	26°F (-3°C)
Last update	29 Jan 9:15 pm MST

More Information:

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

Extended Forecast for

3 Miles S Whitewood SD

Winter Weather Advisory January 29, 09:33pm until January 30, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory January 29, 09:33pm until January 30, 05:00pm
NOW until 5:00pm Fri
Winter Weather Advisory
Tonight
Low: 18 °F
Snow Likely
and Patchy
Fog
Friday
High: 25 °F
Snow Likely
and Areas Fog
then Chance
Snow
Friday Night
Low: 22 °F⇑
Chance Snow
Saturday
High: 43 °F
Rain/Snow
Likely then
Slight Chance
Rain/Snow and
Breezy
Saturday Night
Low: 32 °F
Mostly Clear
and Breezy
Sunday
High: 44 °F
Mostly Sunny
Sunday Night
Low: 29 °F
Mostly Cloudy
Monday
High: 45 °F
Mostly Cloudy
then Slight
Chance Rain

Detailed Forecast

Tonight

Snow likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 18. Northwest wind 6 to 8 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

Friday

Snow likely, mainly before 8am. Areas of fog before 11am. Otherwise, cloudy, with a high near 25. Wind chill values as low as 10. East wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Friday Night

A 30 percent chance of snow after 11pm. Increasing clouds, with a temperature rising to around 32 by 5am. Wind chill values as low as 11. South wind 7 to 10 mph becoming southwest in the evening.

Saturday

Rain and snow likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 43. Breezy, with a west wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Saturday Night

Mostly clear, with a low around 32. Breezy, with a west wind around 23 mph, with gusts as high as 32 mph.

Sunday

Mostly sunny, with a high near 44. West wind 11 to 16 mph becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.

Sunday Night

Mostly cloudy, with a low around 29. South wind 6 to 8 mph.

Monday

A slight chance of rain after 5pm. Partly sunny, with a high near 45. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.

Monday Night

A slight chance of snow. Partly cloudy, with a low around 31. Breezy.

Tuesday

A slight chance of snow. Partly sunny, with a high near 39. Breezy.