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 >

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Last Map Update: Thu, Dec 25, 2025 at 9:52:12 pm CST

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Tonight

Weather for the Week

Austin Severe Weather+Flooding Training

Unseasonably warm temperatures continue, with lows tonight mostly in the upper 50s to mid 60s. Partly cloudy this evening, becoming cloudy overnight with fog in some areas towards morning.

Unseasonably warm conditions continue through Sunday afternoon, with mornings cloudy and foggy. Colder conditions are forecast to return Sunday night behind a cold front, and persist through Wednesday. Windy post-frontal conditions will produce wind chill values in the mid upper 20s to upper 30s Monday morning. A light freeze is forecast for some locations Tuesday and Wednesday. There is a low chance (10-40%) of showers along and just behind the cold front Sunday night into Monday morning.

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

NWS Austin/San Antonio