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

Jolon Hills (PG727)

Lat: 35.88446°NLon: 120.95584°WElev: 1495.0ft.

55°F

13°C

Humidity	81%
Wind Speed	S 21 MPH
Barometer	NA
Dewpoint	49°F (9°C)
Visibility	NA
Last update	24 Dec 06:50 PM PST

More Information:

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

Extended Forecast for

4 Miles SE Lake San Antonio CA

Flood Watch December 24, 07:00pm until December 26, 10:00pm

High Wind Warning December 24, 08:00pm until December 25, 10:00am

Click here for hazard details and duration

Flood Watch

High Wind Warning

Flood Watch December 24, 07:00pm until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Tonight
Low: 49 °F
Breezy.
Showers then
Severe
Thunderstorms
Christmas Day
High: 59 °F
Breezy.
Severe
Thunderstorms
then Showers
Thursday Night
Low: 47 °F
Severe
Thunderstorms
and Breezy
Friday
High: 58 °F
Showers
Friday Night
Low: 39 °F
Chance
Showers and
Patchy Fog
Saturday
High: 59 °F
Chance
Showers
Saturday Night
Low: 34 °F
Mostly Clear
then Patchy
Frost
Sunday
High: 60 °F
Areas Frost
then Sunny

Detailed Forecast

Tonight

Showers and possibly a thunderstorm before 1am, then showers between 1am and 4am, then showers and possibly a thunderstorm after 4am. Some of the storms could be severe. Low around 49. Breezy, with a south wind 21 to 26 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Christmas Day

Showers and possibly a thunderstorm. Some of the storms could be severe. High near 59. Breezy, with a south southwest wind 18 to 23 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday Night

Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 47. Breezy, with a south southwest wind 17 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday

Showers, mainly before 4pm. High near 58. South southwest wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

A 50 percent chance of showers, mainly after 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 39. Light south wind. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A 30 percent chance of showers, mainly before 10am. Mostly sunny, with a high near 59.

Saturday Night

Patchy frost after 2am. Otherwise, mostly clear, with a low around 34.

Sunday

Areas of frost before 9am. Otherwise, sunny, with a high near 60.

Sunday Night

Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32.

Monday

Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 63.

Monday Night

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