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

Flood Watch until December 26, 10:00 PM PST

Current conditions at

San Jose, San Jose International Airport (KSJC)

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

Partly Cloudy

58°F

14°C

Humidity	69%
Wind Speed	ESE 5 MPH
Barometer	29.81 in (1009.48 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	25 Dec 01:53 PM PST

More Information:

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

Extended Forecast for

2 Miles WSW Santa Clara CA

Flood Watch December 25, 02:11pm until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 25, 02:11pm until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Christmas Day
High: 58 °F
Severe
Thunderstorms
Tonight
Low: 48 °F
Severe
Thunderstorms
and Breezy
then Showers
Likely
Friday
High: 57 °F
Chance
Showers
Friday Night
Low: 43 °F
Chance
Showers
Saturday
High: 54 °F
Mostly Sunny
Saturday Night
Low: 36 °F
Mostly Clear
then Patchy
Frost
Sunday
High: 55 °F
Patchy Frost
then Sunny
Sunday Night
Low: 36 °F
Clear then
Patchy Frost

Detailed Forecast

Christmas Day

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Some of the storms could be severe. Cloudy, with a high near 58. South wind around 20 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm before 3am, then showers likely. Some of the storms could be severe. Low around 48. Breezy, with a south wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday

A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 57. South southeast wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Mostly cloudy, with a low around 43. South wind 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Mostly sunny, with a high near 54. North northwest wind 3 to 6 mph.

Saturday Night

Patchy frost after 3am. Otherwise, mostly clear, with a low around 36.

Sunday

Patchy frost before 8am. Otherwise, sunny, with a high near 55.

Sunday Night

Patchy frost after 1am. Otherwise, mostly clear, with a low around 36.

Monday

Areas of frost before 7am. Otherwise, sunny, with a high near 58.

Monday Night

Patchy frost after 5am. Otherwise, mostly clear, with a low around 38.