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 Jose, San Jose International Airport (KSJC)

Lat: 37.35917°NLon: 121.92417°WElev: 59.0ft.

Rain

57°F

14°C

Humidity	82%
Wind Speed	SSE 13 MPH
Barometer	29.65 in (1004.06 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	24 Dec 10:35 PM PST

More Information:

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

Extended Forecast for

3 Miles SSE Milpitas CA

Flood Watch December 24, 10:57pm until December 26, 10:00pm

Wind Advisory until December 25, 10:00am

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Watch December 24, 10:57pm until December 26, 10:00pm
Wind Advisory until December 25, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 51 °F
Breezy.
Showers then
Severe
Thunderstorms
Christmas Day
High: 57 °F
Severe
Thunderstorms
Thursday Night
Low: 48 °F
Severe
Thunderstorms
then Showers
Likely
Friday
High: 55 °F
Showers
Friday Night
Low: 42 °F
Chance
Showers
Saturday
High: 54 °F
Slight Chance
Showers then
Mostly Sunny
Saturday Night
Low: 36 °F
Mostly Clear
then Patchy
Frost
Sunday
High: 54 °F
Patchy Frost
then Sunny

Detailed Forecast

Tonight

Showers, with thunderstorms also possible after 1am. Some of the storms could be severe. Low around 51. Breezy, with a south southeast wind around 22 mph, with gusts as high as 41 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 57. South wind 15 to 20 mph, with gusts as high as 34 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. Low around 48. South wind 14 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Showers. High near 55. South wind around 10 mph, with gusts as high as 20 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 42. South southeast wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A 20 percent chance of showers before 10am. Partly sunny, with a high near 54.

Saturday Night

Patchy frost after 4am. Otherwise, mostly clear, with a low around 36.

Sunday

Patchy frost before 7am. Otherwise, sunny, with a high near 54.

Sunday Night

Patchy frost after 2am. Otherwise, mostly clear, with a low around 36.

Monday

Areas of frost before 8am. Otherwise, sunny, with a high near 57.

Monday Night

Mostly clear, with a low around 38.