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 >

Current conditions at

OAK MOUNTAIN (OMTC1)

Lat: 41.00633°NLon: 121.98443°WElev: 2646.0ft.

NA

50°F

10°C

Humidity 90%
Wind Speed SSE 11 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 24 Dec 06:26 AM PST
Extended Forecast for

17 Miles NE Central Valley CA

Flood Watch December 24, 07:31am until December 26, 04:00pm
Winter Storm Warning December 24, 04:00pm until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 07:31am until December 26, 04:00pm

    NOW until 4:00pm Fri

    Flood Watch

  • Today

    High: 44 °F

    Rain and
    Windy

  • Tonight

    Tonight: Rain, mainly after 8pm.  Steady temperature around 43. Windy, with a south southeast wind 21 to 26 mph increasing to 31 to 36 mph after midnight. Winds could gust as high as 48 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 43 °F

    Rain and
    Windy

  • Christmas Day

    Christmas Day: Rain.  Steady temperature around 40. Windy, with a south wind 33 to 40 mph, with gusts as high as 50 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 40 °F

    Rain and
    Windy

  • Thursday Night

    Thursday Night: Rain.  Low around 37. Windy, with a south wind 30 to 32 mph, with gusts as high as 41 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 37 °F

    Rain and
    Windy

  • Friday

    Friday: Rain.  High near 39. Windy, with a south wind 23 to 31 mph, with gusts as high as 38 mph.  Chance of precipitation is 100%.

    High: 39 °F

    Rain and
    Windy

  • Friday Night

    Friday Night: Rain before 4am, then rain likely, possibly mixed with snow.  Low around 36. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain then
    Rain/Snow
    Likely

  • Saturday

    Saturday: A 30 percent chance of snow before 10am.  Mostly sunny, with a high near 40. Little or no snow accumulation expected.

    High: 40 °F

    Chance Snow
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Today
Rain, mainly before 5pm. Steady temperature around 44. Windy, with a south wind 30 to 40 mph decreasing to 16 to 26 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain, mainly after 8pm. Steady temperature around 43. Windy, with a south southeast wind 21 to 26 mph increasing to 31 to 36 mph after midnight. Winds could gust as high as 48 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Christmas Day
Rain. Steady temperature around 40. Windy, with a south wind 33 to 40 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
Rain. Low around 37. Windy, with a south wind 30 to 32 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Friday
Rain. High near 39. Windy, with a south wind 23 to 31 mph, with gusts as high as 38 mph. Chance of precipitation is 100%.
Friday Night
Rain before 4am, then rain likely, possibly mixed with snow. Low around 36. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday
A 30 percent chance of snow before 10am. Mostly sunny, with a high near 40. Little or no snow accumulation expected.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Mostly sunny, with a high near 44.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles NE Central Valley CA
 40.88°N 122.18°W (Elev. 4167 ft)
1:21 am PST Dec 24, 2025
7am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database