Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

55°F

13°C

Humidity	28%
Wind Speed	W 14 mph
Barometer	29.95 in
Dewpoint	23°F (-5°C)
Visibility	10.00 mi
Wind Chill	51°F (11°C)
Last update	24 Dec 5:55 am MST

More Information:

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

Extended Forecast for

Spearfish SD

Today
High: 58 °F
Mostly Sunny
Tonight
Low: 49 °F⇑
Mostly Cloudy
and Windy
Christmas Day
High: 62 °F
Mostly Sunny
and Windy
Thursday Night
Low: 43 °F
Mostly Clear
Friday
High: 57 °F
Sunny and
Breezy
Friday Night
Low: 35 °F
Mostly Clear
Saturday
High: 43 °F
Slight Chance
Snow and
Breezy
Saturday Night
Low: 10 °F
Slight Chance
Snow then
Mostly Clear
Sunday
High: 26 °F
Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 58. Southwest wind 5 to 9 mph becoming east in the afternoon. Winds could gust as high as 16 mph.

Tonight

Mostly cloudy, with a temperature rising to around 56 by 5am. Windy, with a southeast wind 9 to 14 mph becoming southwest 24 to 34 mph. Winds could gust as high as 48 mph.

Christmas Day

Mostly sunny, with a high near 62. Windy, with a southwest wind 29 to 39 mph decreasing to 15 to 25 mph in the afternoon. Winds could gust as high as 55 mph.

Thursday Night

Mostly clear, with a low around 43. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Friday

Sunny, with a high near 57. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 29 mph.

Friday Night

Mostly clear, with a low around 35. Southwest wind 14 to 16 mph, with gusts as high as 26 mph.

Saturday

A 20 percent chance of snow after 11am. Increasing clouds, with a high near 43. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 30 mph.

Saturday Night

A slight chance of snow before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 10. West wind around 18 mph, with gusts as high as 28 mph.

Sunday

Sunny, with a high near 26.

Sunday Night

Partly cloudy, with a low around 16.

Monday

Mostly sunny, with a high near 43.

Monday Night

Partly cloudy, with a low around 30.

Tuesday

A slight chance of rain and snow. Partly sunny, with a high near 48.