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.

39°F

4°C

Humidity	56%
Wind Speed	W 18 G 24 mph
Barometer	30.01 in
Dewpoint	25°F (-4°C)
Visibility	10.00 mi
Wind Chill	30°F (-1°C)
Last update	7 Dec 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: 30 °F⇓
Mostly Sunny
Tonight
Low: 22 °F
Partly Cloudy
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: 11 °F
Snow
Thursday
High: 17 °F
Snow Likely

Detailed Forecast

Today

Mostly sunny, with a temperature falling to around 22 by 5pm. Wind chill values as low as 11. West wind around 11 mph, with gusts as high as 28 mph.

Tonight

Partly cloudy, with a steady temperature around 22. Wind chill values as low as 9. 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 12. West wind 11 to 14 mph, with gusts as high as 29 mph.

Monday Night

A 20 percent chance of snow after 11pm. Mostly cloudy, with a temperature rising to around 32 by 5am. Wind chill values as low as 15. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 34 mph.

Tuesday

A chance of rain and snow before 11am, then snow likely. Mostly cloudy, with a temperature rising to near 37 by 10am, then falling to around 26 during the remainder of the day. Breezy, with a west wind 17 to 22 mph, with gusts as high as 40 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 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 38 mph. New snow accumulation of less than a half inch possible.

Wednesday

Snow, mainly after 11am. High near 31. Southwest wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

Wednesday Night

Snow. Mostly cloudy, with a low around 11. Northwest wind around 14 mph, with gusts as high as 24 mph.

Thursday

Snow likely, mainly before 11am. Partly sunny, with a high near 17.

Thursday Night

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

Friday

A chance of snow. Mostly cloudy, with a high near 9.

Friday Night

A chance of snow. Mostly cloudy, with a low around 3.