Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

Red Bluff, Red Bluff Municipal Airport (KRBL)

Lat: 40.15056° N Lon: 122.25222° W Elev: 348.0 ft.

Partly Cloudy

49°F

9°C

Humidity 83%
Wind Speed SE 16 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 26 Dec 01:54 AM PST
Detailed forecast for

Northern Sacramento Valley

Today
A chance of rain early in the morning, then rain in the late morning and afternoon. Breezy. Highs around 48. South winds 15 to 25 mph with gusts to around 45 mph.
Tonight
Mostly cloudy with a chance of rain. Lows 35 to 43. South winds up to 15 mph. Gusts up to 30 mph decreasing to 20 mph after midnight.
Saturday
Mostly cloudy with a slight chance of rain in the morning, then mostly sunny in the afternoon. Highs around 48. Northwest winds up to 10 mph.
Saturday Night
Mostly clear in the evening then becoming mostly cloudy. Lows 33 to 38. North winds around 10 mph with gusts to around 20 mph.
Sunday
Partly cloudy in the morning then clearing. Highs 48 to 55. North winds 10 to 15 mph.
Sunday Night
Mostly clear. Lows around 36.
Monday
Partly cloudy. Highs 50 to 58.
Monday Night And Tuesday
Partly cloudy. Lows around 36. Highs 50 to 58.
Tuesday Night
Mostly clear. Lows around 37.
Wednesday
Partly cloudy. Highs 50 to 57.
Wednesday Night
Mostly cloudy. Lows around 39.
New Years Day
Mostly cloudy with a chance of rain. Highs around 48.



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122 AM PST Fri Dec 26 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database