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.

55°F

13°C

Humidity	60%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Last update	26 Dec 12:43 AM PST

More Information:

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

Extended Forecast for

2 Miles NNW San Francisco CA

Flood Watch December 26, 01:01am 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 26, 01:01am until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Overnight
Low: 53 °F
Chance
Showers and
Breezy
Friday
High: 55 °F
Showers and
Breezy
Friday Night
Low: 48 °F
Chance
Showers
Saturday
High: 51 °F
Slight Chance
Showers
Saturday Night
Low: 43 °F
Partly Cloudy
Sunday
High: 51 °F
Mostly Sunny
Sunday Night
Low: 44 °F
Mostly Clear
Monday
High: 51 °F
Sunny

Detailed Forecast

Overnight

A 40 percent chance of showers. Mostly cloudy, with a low around 53. Breezy, with a south southwest wind around 29 mph, with gusts as high as 37 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday

Showers, with thunderstorms also possible after 4pm. High near 55. Breezy, with a south wind 23 to 26 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. 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 48. Southwest wind 15 to 17 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. 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 51. North wind around 11 mph.

Saturday Night

Partly cloudy, with a low around 43. North wind around 9 mph.

Sunday

Mostly sunny, with a high near 51.

Sunday Night

Mostly clear, with a low around 44.

Monday

Sunny, with a high near 51.

Monday Night

Mostly clear, with a low around 43.