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

2 Miles SW Lead SD

Today
High: 53 °F
Sunny
Tonight
Low: 46 °F⇑
Partly Cloudy
Christmas Day
High: 55 °F
Mostly Sunny
Thursday Night
Low: 38 °F
Mostly Clear
Friday
High: 49 °F
Sunny
Friday Night
Low: 30 °F
Mostly Clear
Saturday
High: 37 °F
Slight Chance
Snow
Saturday Night
Low: 7 °F
Chance Snow
Sunday
High: 22 °F
Sunny

Detailed Forecast

Today

Sunny, with a high near 53. Southwest wind around 7 mph, with gusts as high as 20 mph.

Tonight

Partly cloudy, with a temperature rising to around 49 by midnight. Southwest wind 8 to 15 mph, with gusts as high as 21 mph.

Christmas Day

Mostly sunny, with a high near 55. Southwest wind 9 to 16 mph, with gusts as high as 23 mph.

Thursday Night

Mostly clear, with a low around 38. Southwest wind 9 to 11 mph, with gusts as high as 29 mph.

Friday

Sunny, with a high near 49. Southwest wind around 11 mph, with gusts as high as 29 mph.

Friday Night

Mostly clear, with a low around 30. West wind 10 to 13 mph, with gusts as high as 30 mph.

Saturday

A 20 percent chance of snow after 11am. Increasing clouds, with a high near 37. Northwest wind around 10 mph, with gusts as high as 29 mph.

Saturday Night

A chance of snow, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 7. West wind 11 to 14 mph, with gusts as high as 34 mph.

Sunday

Sunny, with a high near 22.

Sunday Night

Partly cloudy, with a low around 13.

Monday

Sunny, with a high near 37.

Monday Night

Partly cloudy, with a low around 26.

Tuesday

A slight chance of snow. Partly sunny, with a high near 42.