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.

Overcast

57°F

14°C

Humidity	82%
Wind Speed	SE 13 MPH
Barometer	29.63 in (1003.39 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	24 Dec 07:20 PM PST

More Information:

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

Extended Forecast for

5 Miles N Milpitas CA

Flood Watch December 24, 07:32pm 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, 07:32pm until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Tonight
Low: 47 °F
Severe
Thunderstorms
and Windy
Christmas Day
High: 49 °F
Severe
Thunderstorms
and Breezy
Thursday Night
Low: 50 °F
Severe
Thunderstorms
and Windy
Friday
High: 49 °F
Showers
Friday Night
Low: 41 °F
Chance
Showers
Saturday
High: 46 °F
Slight Chance
Showers then
Mostly Sunny
Saturday Night
Low: 35 °F
Mostly Clear
then Patchy
Frost
Sunday
High: 46 °F
Areas Frost
then Sunny

Detailed Forecast

Tonight

Showers and possibly a thunderstorm before 10pm, then showers between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Some of the storms could be severe. Low around 47. Windy, with a south wind 21 to 26 mph increasing to 31 to 36 mph after midnight. Winds could gust as high as 50 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. Steady temperature around 49. Breezy, with a south southwest wind 23 to 26 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 southwest wind 22 to 30 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 49. South wind 11 to 18 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 41. South southeast wind around 8 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 46.

Saturday Night

Patchy frost after 4am. Otherwise, mostly clear, with a low around 35.

Sunday

Areas of frost before 7am. Otherwise, sunny, with a high near 46.

Sunday Night

Areas of frost after 5am. Otherwise, clear, with a low around 35.

Monday

Areas of frost before 9am. Otherwise, sunny, with a high near 49.

Monday Night

Mostly clear, with a low around 38.