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 >

Current conditions at

WHITEHALL (WHHM8)

Lat: 45.8715° N Lon: 112.10821° W Elev: 4390.0 ft.

NA

29°F

-2°C

Humidity 100%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 24 Dec 03:15 AM MST
Detailed forecast for

Missouri Headwaters

Today
Mostly sunny. Highs in the lower 50s. South winds 5 to 15 mph with gusts to around 40 mph.
Tonight
Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s. Southwest winds up to 10 mph. Gusts up to 35 mph decreasing to 25 mph after midnight.
Christmas Day
Partly sunny. Patchy fog in the morning. Chance of rain in the morning, then slight chance of rain in the afternoon. Highs in the upper 40s. Southwest winds up to 10 mph with gusts to around 25 mph. Chance of rain 50 percent.
Thursday Night
Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the lower 30s. Southwest winds 5 to 15 mph with gusts to around 30 mph.
Friday
Breezy. Partly sunny with a 20 percent chance of rain and snow. Highs in the mid 40s. Southwest winds 5 to 15 mph increasing to 10 to 25 mph in the afternoon.
Friday Night And Saturday
Breezy, colder. Partly cloudy. A 20 percent chance of snow. Lows in the mid 20s. Highs in the lower 30s.
Saturday Night
Colder. Partly cloudy. Lows around 15.
Sunday
Partly sunny. Highs in the mid 30s.
Sunday Night
Partly cloudy. Lows around 20.
Monday Through Tuesday
Mostly cloudy. Highs in the mid 40s. Lows in the mid 20s.



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339 AM MST Wed Dec 24 2025
 
 

Additional Resources

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