Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

High Wind Warning in effect from December 9, 08:00 AM MST until December 10, 02:00 AM MST

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

43°F

6°C

Humidity	49%
Wind Speed	W 8 G 16 mph
Barometer	29.82 in
Dewpoint	25°F (-4°C)
Visibility	10.00 mi
Wind Chill	38°F (3°C)
Last update	8 Dec 10:15 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, 08:00am until December 10, 02:00am

Click here for hazard details and duration

High Wind Warning

Tonight
Low: 44 °F
Mostly Cloudy
then Mostly
Cloudy and
Breezy
Tuesday
High: 49 °F⇓
Rain Likely
and Windy
Tuesday Night
Low: 27 °F
Mostly Cloudy
and Breezy
Wednesday
High: 42 °F
Snow then
Rain/Snow
Wednesday Night
Low: 40 °F
Rain
Thursday
High: 43 °F
Rain Likely
then
Rain/Snow
Likely
Thursday Night
Low: 9 °F
Snow Likely
Friday
High: 17 °F
Snow Likely
Friday Night
Low: 10 °F
Chance Snow

Detailed Forecast

Tonight

Mostly cloudy, with a steady temperature around 44. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 34 mph.

Tuesday

Rain likely, mainly after 11am. Mostly cloudy, with a temperature rising to near 49 by 10am, then falling to around 38 during the remainder of the day. Windy, with a west wind 25 to 30 mph increasing to 32 to 37 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 60%.

Tuesday Night

Mostly cloudy, with a low around 27. Wind chill values as low as 17. Breezy, with a west wind 24 to 29 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 40 mph.

Wednesday

Snow before noon, then rain and snow between noon and 2pm, then rain after 2pm. High near 42. Wind chill values as low as 20. Southwest wind 8 to 14 mph becoming south in the morning. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain. Steady temperature around 40. West wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

Thursday

Rain likely before 4pm, then rain and snow likely. Cloudy, with a high near 43. West wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Thursday Night

Snow likely. Cloudy, with a low around 9. Northwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

Friday

Snow likely, mainly before 11am. Cloudy, with a high near 17. Northwest wind around 8 mph becoming east in the afternoon. Winds could gust as high as 15 mph.

Friday Night

A chance of snow. Cloudy, with a low around 10.

Saturday

A slight chance of snow before 11am. Mostly cloudy, with a high near 26.

Saturday Night

Mostly cloudy, with a low around 14.

Sunday

Partly sunny, with a high near 42.

Sunday Night

Partly cloudy, with a low around 26.

Monday

Mostly sunny, with a high near 42.