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 / Reid / Hillv (KRHV)

Lat: 37.33333°NLon: 121.81667°WElev: 135.0ft.

Mostly Cloudy

59°F

15°C

Humidity	77%
Wind Speed	ESE 17 MPH
Barometer	29.65 in (1004.06 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	24 Dec 08:47 PM PST

More Information:

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

Extended Forecast for

11 Miles NNE Mount Hamilton CA

Flood Watch December 24, 09:30pm 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, 09:30pm until December 26, 10:00pm
Wind Advisory until December 25, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 44 °F
Showers and
Windy
Christmas Day
High: 47 °F
Showers and
Breezy
Thursday Night
Low: 37 °F
Showers and
Windy
Friday
High: 49 °F
Showers
Friday Night
Low: 33 °F
Showers
Likely then
Chance
Rain/Snow
Saturday
High: 47 °F
Slight Chance
Rain/Snow
then Mostly
Sunny
Saturday Night
Low: 27 °F
Frost
Sunday
High: 48 °F
Frost then
Sunny

Detailed Forecast

Tonight

Showers, with thunderstorms also possible after 4am. Steady temperature around 44. Windy, with a south southeast wind 28 to 33 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. High near 47. Breezy, with a southwest wind 21 to 28 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night

Showers and possibly a thunderstorm. Low around 37. Windy, with a south southwest wind 23 to 30 mph, with gusts as high as 49 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Showers. High near 49. South wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

Rain showers likely before 4am, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 33. South southwest wind around 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Saturday

A slight chance of rain and snow showers before 10am. Mostly sunny, with a high near 47. Chance of precipitation is 20%.

Saturday Night

Widespread frost between 9pm and 1am. Otherwise, mostly clear, with a low around 27.

Sunday

Widespread frost between 7am and 9am. Otherwise, sunny, with a high near 48.

Sunday Night

Areas of frost before 10pm, then widespread frost after 1am. Otherwise, clear, with a low around 28.

Monday

Areas of frost before 9am. Otherwise, sunny, with a high near 52.

Monday Night

Mostly clear, with a low around 32.