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

Fairfield / Travis Air Force Base (KSUU)

Lat: 38.26667°NLon: 121.95°WElev: 62.0ft.

Rain

58°F

14°C

Humidity 87%
Wind Speed SSE 19 MPH
Barometer 29.58 in (1001.69 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 24 Dec 07:55 PM PST
Extended Forecast for

5 Miles E Napa Co. Airport CA

Flood Watch December 24, 09:30pm until December 26, 04:00pm
High Wind Warning December 24, 09:30pm until December 25, 04:00pm
Click here for hazard details and duration
Flood Watch
High Wind Warning
  •  
    Flood Watch December 24, 09:30pm until December 26, 04:00pm
    High Wind Warning December 24, 09:30pm until December 25, 04:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 53 °F

    Showers and
    Windy

  • Christmas Day

    Christmas Day: Rain and possibly a thunderstorm before 1pm, then showers and possibly a thunderstorm, mainly after 1pm.  Steady temperature around 50. Windy, with a south southwest wind 28 to 34 mph, with gusts as high as 49 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 50 °F

    Showers and
    Windy

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm.  Low around 48. Windy, with a south southwest wind 29 to 32 mph, with gusts as high as 46 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Showers and
    Windy

  • Friday

    Friday: Rain.  High near 49. Breezy, with a south wind 22 to 29 mph, with gusts as high as 38 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Rain and
    Breezy

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before 4am.  Mostly cloudy, with a low around 42. South wind around 9 mph becoming east southeast after midnight.

    Low: 42 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 10am.  Partly sunny, with a high near 46.

    High: 46 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Steady temperature around 53. Windy, with a south southeast wind 26 to 31 mph increasing to 33 to 38 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Christmas Day
Rain and possibly a thunderstorm before 1pm, then showers and possibly a thunderstorm, mainly after 1pm. Steady temperature around 50. Windy, with a south southwest wind 28 to 34 mph, with gusts as high as 49 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm. Low around 48. Windy, with a south southwest wind 29 to 32 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 49. Breezy, with a south wind 22 to 29 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 42. South wind around 9 mph becoming east southeast after midnight.
Saturday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 47.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Napa Co. Airport CA
 38.22°N 122.18°W (Elev. 636 ft)
1:21 pm PST Dec 24, 2025
9pm PST Dec 24, 2025-6pm PST Dec 31, 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