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.

Overcast

39°F

4°C

Humidity	52%
Wind Speed	W 7 mph
Barometer	29.91 in
Dewpoint	23°F (-5°C)
Visibility	10.00 mi
Wind Chill	34°F (1°C)
Last update	8 Dec 4:15 am 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

Overnight
Low: 33 °F
Chance Snow
Monday
High: 45 °F
Mostly Sunny
and Breezy
Monday Night
Low: 39 °F⇑
Slight Chance
Snow then
Slight Chance
Rain and
Breezy
Tuesday
High: 48 °F⇓
Windy. Rain
Likely then
Rain/Snow
Likely
Tuesday Night
Low: 28 °F
Chance Snow
and Breezy
Wednesday
High: 40 °F
Snow then
Rain/Snow
Wednesday Night
Low: 27 °F
Rain then
Rain/Snow
Likely
Thursday
High: 35 °F
Snow Likely
Thursday Night
Low: 8 °F
Snow Likely

Detailed Forecast

Overnight

A 30 percent chance of snow. Mostly cloudy, with a low around 33. West wind around 10 mph, with gusts as high as 20 mph.

Monday

Mostly sunny, with a high near 45. Breezy, with a west wind 17 to 23 mph, with gusts as high as 34 mph.

Monday Night

A slight chance of snow between 11pm and midnight, then a slight chance of rain after midnight. Mostly cloudy, with a temperature rising to around 43 by 5am. Breezy, with a west wind 14 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

Tuesday

Rain likely before 4pm, then rain and snow likely. Mostly cloudy, with a temperature rising to near 48 by 10am, then falling to around 37 during the remainder of the day. Windy, with a west wind 28 to 36 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Tuesday Night

A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 28. Breezy, with a west wind 21 to 26 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph.

Wednesday

Snow before 1pm, then rain and snow between 1pm and 3pm, then rain after 3pm. High near 40. Southwest wind 7 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain before 3am, then rain and snow likely. Low around 27. West wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

Thursday

Snow likely. Mostly cloudy, with a high near 35. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.

Thursday Night

Snow likely. Cloudy, with a low around 8.

Friday

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

Friday Night

A chance of snow. Mostly cloudy, with a low around 8.

Saturday

A chance of snow. Mostly cloudy, with a high near 27.