Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

High Wind Watch in effect from December 9, 08:00 AM MST until December 9, 11:00 PM MST

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Partly Cloudy

36°F

2°C

Humidity	56%
Wind Speed	W 9 G 15 mph
Barometer	30.01 in
Dewpoint	21°F (-6°C)
Visibility	10.00 mi
Wind Chill	29°F (-2°C)
Last update	7 Dec 7:15 pm MST

More Information:

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

Extended Forecast for

3 Miles NE Spearfish SD

High Wind Watch December 9, 08:00am until December 9, 11:00pm

Click here for hazard details and duration

High Wind Watch

Tonight
Low: 30 °F⇑
Increasing
Clouds
Monday
High: 43 °F
Mostly Sunny
and Breezy
Monday Night
Low: 37 °F⇑
Slight Chance
Rain and
Breezy
Tuesday
High: 49 °F⇓
Windy. Chance
Rain then
Chance
Rain/Snow
Tuesday Night
Low: 29 °F
Chance Snow
and Breezy
Wednesday
High: 39 °F
Snow Likely
then
Rain/Snow
Likely
Wednesday Night
Low: 23 °F
Rain/Snow
Thursday
High: 28 °F
Chance Snow
Thursday Night
Low: 6 °F
Chance Snow

Detailed Forecast

Tonight

Increasing clouds, with a temperature falling to near 30 by midnight, then rising to around 37 during the remainder of the night. Southwest wind 10 to 13 mph, with gusts as high as 21 mph.

Monday

Mostly sunny, with a high near 43. Breezy, with a west wind 17 to 22 mph, with gusts as high as 34 mph.

Monday Night

A 20 percent chance of rain after 11pm. Mostly cloudy, with a temperature falling to near 37 by 8pm, then rising to around 44 during the remainder of the night. Breezy, with a southwest wind 17 to 26 mph, with gusts as high as 37 mph.

Tuesday

A chance of rain before 4pm, then a chance of rain and snow. Mostly cloudy, with a temperature rising to near 49 by noon, then falling to around 39 during the remainder of the day. Windy, with a west wind 29 to 33 mph, with gusts as high as 46 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Tuesday Night

A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 29. Breezy, with a west wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 38 mph.

Wednesday

Snow likely before noon, then rain and snow likely between noon and 3pm, then rain likely after 3pm. Mostly cloudy, with a high near 39. Southwest wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain before 11pm, then rain and snow likely between 11pm and 2am, then snow likely after 2am. Low around 23. Northwest wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

Thursday

A chance of snow. Mostly cloudy, with a high near 28. Northwest wind 13 to 16 mph, with gusts as high as 24 mph.

Thursday Night

A chance of snow. Mostly cloudy, with a low around 6.

Friday

A chance of snow. Mostly cloudy, with a high near 15.

Friday Night

A chance of snow. Mostly cloudy, with a low around 7.

Saturday

A slight chance of snow. Partly sunny, with a high near 28.

Saturday Night

Mostly cloudy, with a low around 16.