National Weather Service United States Department of Commerce

Heavy Rain and Flash Flooding Concerns in California; Heavy Snow in the Sierra

An atmospheric river will bring heavy rainfall to lower elevations of California this week, and heavy snow to the Sierra Nevada mountains. Flash flooding, some of which may be locally considerable, will be a concern on the western foothills of the Sierra Nevada mountains through Tuesday. Landslides, rockfalls and mudslides are possible in the Southern California mountains. Read More >

Click a location below for detailed forecast.

Last Map Update: Sat, Dec 27, 2025 at 10:30:25 am CST

Well above normal temperatures continue. Highs will be in the lower to mid 80s, but still below their records in the upper 80s to 90 back in 2021.
The unseasonably warm temperatures will continue through Saturday night. A cold front will move through the area late Sunday providing much colder temperatures Sunday night into Monday.
Wind chills in the lower to mid 20s expected Monday morning as north wind of 15 to 20 mph combine with temperatures in the upper 20s to lower 30s.

 

Current WeatherCurrent Weather RadarRadar SatelliteSatellite Forecast MapsForecast Maps Hourly ForecastHourly Forecast Lakes & RiversLakes & Rivers
Hazards OutlookHazards Outlook Hi-Res RadarHi-Res Radar Fire WeatherFire Weather Winter WeatherWinter Weather DiscussionDiscussion Briefing VideoBriefing Video
ClimateClimate Storm ReportStorm Report Text ProductsText Products AviationAviation DroughtDrought SkywarnSkywarn