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

Livermore, Livermore Municipal Airport (KLVK)

Lat: 37.69278°NLon: 121.81444°WElev: 397.0ft.

Partly Cloudy

52°F

11°C

Humidity	81%
Wind Speed	SSW 9 MPH
Barometer	29.88 in (1011.85 mb)
Dewpoint	46°F (8°C)
Visibility	10.00 mi
Last update	26 Dec 02:00 AM PST

More Information:

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

Extended Forecast for

6 Miles SSE Discovery Bay CA

Flood Watch December 26, 02:26am until December 26, 10:00pm

Flood Advisory December 26, 02:26am until December 26, 06:00pm

Click here for hazard details and duration

Flood Watch

Flood Advisory

Flood Watch December 26, 02:26am until December 26, 10:00pm
Flood Advisory December 26, 02:26am until December 26, 06:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 51 °F
Chance
Showers
Friday
High: 56 °F
Chance
Showers
Friday Night
Low: 46 °F
Slight Chance
T-storms then
Slight Chance
Showers
Saturday
High: 49 °F
Partly Sunny
Saturday Night
Low: 39 °F
Partly Cloudy
Sunday
High: 48 °F
Mostly Sunny
Sunday Night
Low: 38 °F
Mostly Clear
Monday
High: 49 °F
Sunny

Detailed Forecast

Overnight

A 40 percent chance of showers. Mostly cloudy, with a steady temperature around 51. South wind around 10 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday

A 40 percent chance of showers. Mostly cloudy, with a high near 56. Southeast wind 8 to 14 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 46. South wind around 6 mph. Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Partly sunny, with a high near 49. West wind around 7 mph becoming north northwest in the afternoon.

Saturday Night

Partly cloudy, with a low around 39. West northwest wind around 6 mph.

Sunday

Mostly sunny, with a high near 48.

Sunday Night

Mostly clear, with a low around 38.

Monday

Sunny, with a high near 49.

Monday Night

Mostly clear, with a low around 38.