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.

Overcast

46°F

8°C

Humidity	43%
Wind Speed	W 14 G 21 mph
Barometer	29.62 in
Dewpoint	25°F (-4°C)
Visibility	10.00 mi
Wind Chill	40°F (4°C)
Last update	9 Dec 3:15 am MST

More Information:

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

Extended Forecast for

3 Miles WNW Whitewood SD

High Wind Warning December 9, 08:00am until December 10, 02:00am

Click here for hazard details and duration

High Wind Warning

Overnight
Low: 38 °F
Mostly Cloudy
and Breezy
Tuesday
High: 50 °F⇓
Rain Likely
and Windy
Tuesday Night
Low: 27 °F
Partly Cloudy
and Windy
Wednesday
High: 43 °F
Snow then
Rain/Snow
Wednesday Night
Low: 36 °F⇑
Rain
Thursday
High: 46 °F⇓
Rain
Thursday Night
Low: 11 °F
Rain/Snow
then Snow
Friday
High: 17 °F
Snow
Friday Night
Low: 7 °F
Snow Likely

Detailed Forecast

Overnight

Mostly cloudy, with a low around 38. Breezy, with a west wind 18 to 21 mph, with gusts as high as 36 mph.

Tuesday

Rain likely, mainly between 11am and 2pm. Mostly cloudy, with a temperature rising to near 50 by noon, then falling to around 37 during the remainder of the day. Windy, with a west wind 32 to 38 mph, with gusts as high as 55 mph. Chance of precipitation is 60%.

Tuesday Night

Partly cloudy, with a low around 27. Wind chill values as low as 17. Windy, with a west wind 25 to 30 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 46 mph.

Wednesday

Snow before 3pm, then rain and snow between 3pm and 4pm, then rain after 4pm. High near 43. Wind chill values as low as 19. West wind 7 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Wednesday Night

Rain. Temperature rising to around 43 by 5am. West wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

Thursday

Rain, mainly after 11am. Temperature rising to near 46 by 11am, then falling to around 37 during the remainder of the day. Northwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

Thursday Night

Rain and snow, becoming all snow after 7pm. Low around 11. Northwest wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

Friday

Snow. Cloudy, with a high near 17. Northwest wind 9 to 11 mph becoming east in the afternoon. Winds could gust as high as 18 mph.

Friday Night

Snow likely, mainly before 11pm. Cloudy, with a low around 7.

Saturday

A chance of snow, mainly before 11am. Mostly cloudy, with a high near 19.

Saturday Night

Mostly cloudy, with a low around 10.

Sunday

Mostly sunny, with a high near 40.