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 >

Hazardous Weather Conditions

Current conditions at

SAN FRANCISCO DOWNTOWN (SFOC1)

Lat: 37.77056°NLon: 122.42694°WElev: 150.0ft.

51°F

11°C

Humidity	87%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	25 Dec 06:43 PM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

San Francisco CA

Flood Watch December 25, 07:56pm until December 26, 10:00pm

High Surf Advisory December 26, 04:00am until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

High Surf Advisory

Flood Watch December 25, 07:56pm until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Tonight
Low: 51 °F
Showers
Likely and
Breezy
Friday
High: 57 °F
Showers
Likely
Friday Night
Low: 47 °F
Chance
Showers
Saturday
High: 54 °F
Slight Chance
Showers
Saturday Night
Low: 42 °F
Mostly Clear
Sunday
High: 54 °F
Mostly Sunny
Sunday Night
Low: 42 °F
Mostly Clear
Monday
High: 55 °F
Sunny

Detailed Forecast

Tonight

Showers likely. Mostly cloudy, with a low around 51. Breezy, with a south southwest wind 20 to 25 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 57. South wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. Southwest wind 7 to 9 mph becoming northwest after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A 20 percent chance of showers. Mostly sunny, with a high near 54. North wind around 7 mph.

Saturday Night

Mostly clear, with a low around 42. North northeast wind around 6 mph.

Sunday

Mostly sunny, with a high near 54.

Sunday Night

Mostly clear, with a low around 42.

Monday

Sunny, with a high near 55.

Monday Night

Mostly clear, with a low around 41.