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.

Partly Cloudy

63°F

17°C

Humidity	67%
Wind Speed	SSE 4 MPH
Barometer	29.65 in (1004.06 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	24 Dec 12:53 PM PST

More Information:

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

Extended Forecast for

Milpitas CA

Flood Watch December 24, 01:13pm 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, 01:13pm until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
This Afternoon
High: 61 °F
Severe
Thunderstorms
Tonight
Low: 51 °F
Severe
Thunderstorms
and Breezy
Christmas Day
High: 58 °F
Severe
Thunderstorms
Thursday Night
Low: 48 °F
Severe
Thunderstorms
and Breezy
then Showers
Likely
Friday
High: 56 °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

Detailed Forecast

This Afternoon

A chance of showers, with thunderstorms also possible after 4pm. Some of the storms could be severe. Mostly cloudy, with a high near 61. South southeast wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

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 51. Breezy, with a south southeast wind 22 to 25 mph, with gusts 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 58. 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. Breezy, with a south wind 15 to 24 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Showers. High near 56. 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. 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 1am. Otherwise, mostly clear, with a low around 35.

Monday

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

Monday Night

Patchy frost. Otherwise, mostly clear, with a low around 38.