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.

58°F

14°C

Humidity	64%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Last update	25 Dec 09:43 AM PST

More Information:

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

Extended Forecast for

2 Miles NW San Francisco CA

Flood Watch December 25, 10:59am until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 25, 10:59am until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Christmas Day
High: 56 °F
Severe
Thunderstorms
and Breezy
Tonight
Low: 51 °F
Breezy.
Severe
Thunderstorms
then Rain
Likely
Friday
High: 56 °F
Rain
Friday Night
Low: 47 °F
Rain Likely
then Chance
Rain
Saturday
High: 53 °F
Chance Rain
Saturday Night
Low: 43 °F
Partly Cloudy
Sunday
High: 52 °F
Mostly Sunny
Sunday Night
Low: 42 °F
Mostly Clear

Detailed Forecast

Christmas Day

Showers and possibly a thunderstorm. Some of the storms could be severe. High near 56. Breezy, with a south southwest wind around 24 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and possibly a thunderstorm before 10pm, then rain likely after 10pm. Some of the storms could be severe. Low around 51. Breezy, with a south southwest wind 21 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain. High near 56. South southwest wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 47. West northwest wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A 30 percent chance of rain, mainly before 10am. Mostly sunny, with a high near 53. North wind around 10 mph.

Saturday Night

Partly cloudy, with a low around 43.

Sunday

Mostly sunny, with a high near 52.

Sunday Night

Mostly clear, with a low around 42.

Monday

Sunny, with a high near 53.

Monday Night

Mostly clear, with a low around 42.