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.

Overcast and Breezy

37°F

3°C

Humidity	70%
Wind Speed	W 25 G 38 mph
Barometer	29.86 in
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Wind Chill	25°F (-4°C)
Last update	9 Dec 5:35 pm MST

More Information:

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

Extended Forecast for

Spearfish SD

High Wind Warning December 9, 05:47pm until December 10, 02:00am

Click here for hazard details and duration

High Wind Warning

High Wind Warning December 9, 05:47pm until December 10, 02:00am
NOW until 2:00am Wed
High Wind Warning
This Afternoon
High: 38 °F
Rain Likely
Tonight
Low: 28 °F
Mostly Cloudy
and Breezy
then Partly
Cloudy
Wednesday
High: 46 °F
Snow Likely
then
Rain/Snow
Likely
Wednesday Night
Low: 39 °F⇑
Rain Likely
Thursday
High: 52 °F⇓
Chance Rain
then Rain
Thursday Night
Low: 18 °F
Rain/Snow
then Snow
Likely
Friday
High: 23 °F
Snow
Friday Night
Low: 8 °F
Snow Likely

Detailed Forecast

This Afternoon

Rain likely. Mostly cloudy, with a steady temperature around 38. Northwest wind around 17 mph, with gusts as high as 36 mph. Chance of precipitation is 70%.

Tonight

Increasing clouds, with a low around 28. Breezy, with a west wind 21 to 26 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 37 mph.

Wednesday

Rain likely, possibly mixed with snow, becoming all rain after 4pm. Cloudy, with a high near 46. West wind 6 to 10 mph becoming east in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Wednesday Night

Rain likely, mainly before 11pm. Cloudy, with a temperature rising to around 48 by 5am. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

Thursday

Rain, mainly after 5pm. Temperature rising to near 52 by 11am, then falling to around 44 during the remainder of the day. Northwest wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

Thursday Night

Rain before 8pm, then rain and snow between 8pm and 9pm, then snow after 9pm. Low around 18. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Friday

Snow. High near 23. Northwest wind around 8 mph becoming east in the afternoon. Chance of precipitation is 80%.

Friday Night

Snow likely. Cloudy, with a low around 8. East wind around 6 mph.

Saturday

A chance of snow, mainly before 11am. Mostly cloudy, with a high near 20.

Saturday Night

Mostly cloudy, with a low around 10.

Sunday

Mostly sunny, with a high near 44.

Sunday Night

Partly cloudy, with a low around 28.