Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

37°F

3°C

Humidity	52%
Wind Speed	SW 13 mph
Barometer	30.00 in
Dewpoint	21°F (-6°C)
Visibility	10.00 mi
Wind Chill	29°F (-2°C)
Last update	7 Dec 8:15 pm MST

More Information:

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

Extended Forecast for

4 Miles WSW Lead SD

Tonight
Low: 21 °F
Increasing
Clouds
Monday
High: 33 °F
Mostly Sunny
Monday Night
Low: 27 °F⇑
Slight Chance
Snow and
Breezy
Tuesday
High: 37 °F⇓
Breezy.
Rain/Snow
Likely then
Snow Likely
Tuesday Night
Low: 20 °F
Chance Snow
and Blustery
Wednesday
High: 31 °F
Snow
Wednesday Night
Low: 16 °F
Snow
Thursday
High: 22 °F
Snow Likely
Thursday Night
Low: 0 °F
Snow Likely

Detailed Forecast

Tonight

Increasing clouds, with a low around 21. Wind chill values as low as 11. West wind 10 to 13 mph, with gusts as high as 23 mph.

Monday

Mostly sunny, with a high near 33. Wind chill values as low as 15. West wind 13 to 15 mph, with gusts as high as 31 mph.

Monday Night

A 20 percent chance of snow after 11pm. Mostly cloudy, with a temperature rising to around 32 by 4am. Wind chill values as low as 16. Breezy, with a west wind 13 to 21 mph, with gusts as high as 33 mph.

Tuesday

Rain and snow likely, becoming all snow after noon. Mostly cloudy, with a temperature rising to near 37 by 10am, then falling to around 27 during the remainder of the day. Wind chill values as low as 13. Breezy, with a west wind 18 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Tuesday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 20. Blustery, with a northwest wind 13 to 22 mph, with gusts as high as 39 mph. New snow accumulation of less than one inch possible.

Wednesday

Snow. High near 31. Southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Wednesday Night

Snow. Low around 16. Northwest wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.

Thursday

Snow likely, mainly before 11am. Mostly cloudy, with a high near 22. Northwest wind 9 to 14 mph, with gusts as high as 26 mph.

Thursday Night

Snow likely. Mostly cloudy, with a low around 0.

Friday

A chance of snow. Mostly cloudy, with a high near 11.

Friday Night

A chance of snow. Mostly cloudy, with a low around 2.

Saturday

A chance of snow. Partly sunny, with a high near 27.