Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Light Rain

43°F

6°C

Humidity	100%
Wind Speed	SE 3 mph
Barometer	29.78 in
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Last update	10 Dec 9:15 pm MST

More Information:

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

Extended Forecast for

5 Miles SE Deadwood SD

Tonight
Low: 43 °F
Rain Likely
Thursday
High: 52 °F⇓
Rain Likely
Thursday Night
Low: 16 °F
Rain/Snow
Likely then
Snow Likely
Friday
High: 22 °F
Snow
Friday Night
Low: 16 °F
Snow Likely
Saturday
High: 24 °F
Chance Snow
then Slight
Chance Snow
Saturday Night
Low: 12 °F
Partly Cloudy
Sunday
High: 51 °F
Sunny
Sunday Night
Low: 31 °F
Mostly Clear

Detailed Forecast

Tonight

Rain likely, mainly before 2am. Mostly cloudy, with a steady temperature around 43. Light southwest wind becoming west 5 to 10 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 70%.

Thursday

Rain likely, mainly after 11am. Increasing clouds, with a temperature rising to near 52 by noon, then falling to around 39 during the remainder of the day. West wind 11 to 16 mph, with gusts as high as 37 mph. Chance of precipitation is 60%.

Thursday Night

Snow likely, possibly mixed with rain, becoming all snow after 9pm. Cloudy, with a low around 16. Northwest wind 7 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Friday

Snow. High near 22. Wind chill values as low as 12. Northwest wind 3 to 6 mph. Winds could gust as high as 16 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday Night

Snow likely. Mostly cloudy, with a steady temperature around 16. Calm wind becoming southeast around 5 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Saturday

A 50 percent chance of snow, mainly before 11am. Mostly cloudy, with a high near 24. North wind around 6 mph becoming calm in the afternoon. Winds could gust as high as 16 mph. New snow accumulation of less than one inch possible.

Saturday Night

Partly cloudy, with a low around 12. South wind 3 to 6 mph. Winds could gust as high as 15 mph.

Sunday

Sunny, with a high near 51. Southwest wind around 6 mph, with gusts as high as 16 mph.

Sunday Night

Mostly clear, with a low around 31.

Monday

Mostly sunny, with a high near 56.

Monday Night

Partly cloudy, with a low around 33.

Tuesday

Mostly sunny, with a high near 53.