Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Mostly Cloudy

34°F

1°C

Humidity	81%
Wind Speed	W 14 G 22 mph
Barometer	30.01 in
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Wind Chill	25°F (-4°C)
Last update	9 Dec 9:55 pm MST

More Information:

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

Extended Forecast for

4 Miles SW North Spearfish SD

High Wind Warning December 9, 10:09pm until December 10, 02:00am

Click here for hazard details and duration

High Wind Warning

High Wind Warning December 9, 10:09pm until December 10, 02:00am
NOW until 2:00am Wed
High Wind Warning
Tonight
Low: 29 °F
Chance Snow
and Blustery
Wednesday
High: 45 °F
Snow Likely
then
Rain/Snow
Likely
Wednesday Night
Low: 40 °F⇑
Breezy. Rain
Likely then
Chance
Rain/Snow
Thursday
High: 48 °F⇓
Chance
Rain/Snow
then Rain
Thursday Night
Low: 19 °F
Rain/Snow
then Snow
Likely
Friday
High: 22 °F⇓
Snow
Friday Night
Low: 10 °F
Snow Likely
Saturday
High: 19 °F
Chance Snow

Detailed Forecast

Tonight

A 30 percent chance of snow, mainly before 3am. Mostly cloudy, with a steady temperature around 29. Wind chill values as low as 15. Blustery, with a west wind 13 to 23 mph, with gusts as high as 34 mph.

Wednesday

Snow likely before 2pm, then rain and snow likely between 2pm and 4pm, then rain likely after 4pm. Cloudy, with a high near 45. Wind chill values as low as 18 early. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Wednesday Night

Rain likely before 4am, then a chance of rain and snow. Cloudy, with a temperature rising to around 46 by 4am. Breezy, with a west wind 18 to 21 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Thursday

A chance of rain and snow before 9am, then rain. Temperature rising to near 48 by 11am, then falling to around 41 during the remainder of the day. West wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Thursday Night

Rain and snow, becoming all snow after 7pm. Low around 19. Northwest wind 10 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Friday

Snow. Temperature falling to around 18 by 4pm. Northwest wind 5 to 7 mph becoming northeast in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Friday Night

Snow likely. Cloudy, with a low around 10. East wind around 6 mph becoming north after midnight. Chance of precipitation is 70%.

Saturday

A chance of snow, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 19. North wind around 6 mph becoming light and variable.

Saturday Night

Partly cloudy, with a low around 12.

Sunday

Mostly sunny, with a high near 41.

Sunday Night

Partly cloudy, with a low around 30.

Monday

Mostly sunny, with a high near 43.

Monday Night

Partly cloudy, with a low around 32.

Tuesday

A slight chance of rain and snow. Partly sunny, with a high near 46.