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

READER RANCH (RRRC1)

Lat: 39.30351°NLon: 121.11725°WElev: 1968.0ft.

48°F

9°C

Humidity	93%
Wind Speed	SSW 10 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Wind Chill	44°F (7°C)
Last update	25 Dec 08:13 PM PST

More Information:

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

Extended Forecast for

9 Miles NNW Grass Valley CA

Flood Watch December 25, 08:32pm until December 26, 04:00pm

Wind Advisory until December 26, 10:00am

Flood Advisory December 25, 08:32pm until December 26, 06:00pm

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Advisory

Flood Watch December 25, 08:32pm until December 26, 04:00pm
Wind Advisory until December 26, 10:00am
Flood Advisory December 25, 08:32pm until December 26, 06:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 38 °F
Rain
Friday
High: 47 °F
Rain
Friday Night
Low: 38 °F
Rain
Saturday
High: 49 °F
Chance Rain
Saturday Night
Low: 32 °F
Mostly Clear
Sunday
High: 52 °F
Sunny
Sunday Night
Low: 34 °F
Clear
Monday
High: 55 °F
Sunny

Detailed Forecast

Tonight

Rain, mainly after 4am. Low around 38. South southwest wind 13 to 17 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Friday

Rain. High near 47. South wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday Night

Rain, mainly before 4am. Low around 38. Southeast wind 5 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday

A 40 percent chance of rain, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 49. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.

Saturday Night

Mostly clear, with a low around 32. Northeast wind around 6 mph.

Sunday

Sunny, with a high near 52.

Sunday Night

Clear, with a low around 34.

Monday

Sunny, with a high near 55.

Monday Night

Clear, with a low around 35.

Tuesday

Sunny, with a high near 59.