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.

Mostly Cloudy

57°F

14°C

Humidity	71%
Wind Speed	SSW 5 MPH
Barometer	29.61 in (1002.71 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	24 Dec 06:35 PM PST

More Information:

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

Extended Forecast for

8 Miles NE Milpitas CA

Flood Watch December 24, 06:51pm until December 26, 10:00pm

Wind Advisory December 24, 08:00pm until December 25, 10:00am

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Watch December 24, 06:51pm until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Tonight
Low: 48 °F
Windy.
Showers then
Severe
Thunderstorms
Christmas Day
High: 52 °F
Severe
Thunderstorms
and Windy
Thursday Night
Low: 50 °F
Severe
Thunderstorms
and Windy
Friday
High: 50 °F
Showers
Friday Night
Low: 43 °F
Chance
Showers
Saturday
High: 48 °F
Slight Chance
Showers then
Mostly Sunny
Saturday Night
Low: 37 °F
Mostly Clear
Sunday
High: 48 °F
Sunny

Detailed Forecast

Tonight

Showers and possibly a thunderstorm before 7pm, then showers between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Some of the storms could be severe. Low around 48. Windy, with a south wind 17 to 27 mph increasing to 29 to 39 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Christmas Day

Showers and possibly a thunderstorm. Some of the storms could be severe. High near 52. Windy, with a south southwest wind 24 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers before 7pm, then showers and possibly a thunderstorm between 7pm and 10pm, then showers likely after 10pm. Some of the storms could be severe. Steady temperature around 50. Windy, with a south wind 23 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Showers. High near 50. South wind 11 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

A 50 percent chance of showers, mainly before 4am. Mostly cloudy, with a low around 43. South southeast wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A 20 percent chance of showers before 10am. Mostly sunny, with a high near 48.

Saturday Night

Mostly clear, with a low around 37.

Sunday

Sunny, with a high near 48.

Sunday Night

Clear, with a low around 37.

Monday

Sunny, with a high near 52.

Monday Night

Mostly clear, with a low around 40.