National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

LOS GATOS (LSGC1)

Lat: 37.20417°NLon: 121.95083°WElev: 1842.0ft.

NA

48°F

9°C

Humidity 98%
Wind Speed S 30 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 25 Dec 06:32 AM PST
Extended Forecast for

Campbell CA

Flood Watch December 25, 06:58am until December 26, 10:00pm
Wind Advisory December 25, 06:58am until December 25, 10:00am
Flood Advisory December 25, 06:58am until December 25, 08:15am
Click here for hazard details and duration
Flood Watch
...
...
  •  
    Flood Watch December 25, 06:58am until December 26, 10:00pm
    Wind Advisory December 25, 06:58am until December 25, 10:00am
    Flood Advisory December 25, 06:58am until December 25, 08:15am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Christmas Day

    High: 58 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 10pm, then rain likely after 10pm. Some of the storms could be severe. Low around 47. South southwest wind 11 to 21 mph becoming southeast after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Severe
    Thunderstorms
    then Rain
    Likely

  • Friday

    Friday: Rain. High near 56. South wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 43. South wind around 6 mph becoming light and variable after midnight. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 10am. Partly sunny, with a high near 55. North northwest wind 3 to 6 mph.

    High: 55 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: Patchy frost before 7am. Otherwise, sunny, with a high near 56.

    High: 56 °F

    Patchy Frost
    then Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 2am. Otherwise, clear, with a low around 36.

    Low: 36 °F

    Clear then
    Patchy Frost

Detailed Forecast

Christmas Day
Showers and possibly a thunderstorm before 7am, then rain between 7am and 10am, then showers and possibly a thunderstorm after 10am. Some of the storms could be severe. High near 58. South southwest wind 16 to 21 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and possibly a thunderstorm before 10pm, then rain likely after 10pm. Some of the storms could be severe. Low around 47. South southwest wind 11 to 21 mph becoming southeast after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 56. South wind around 11 mph, with gusts as high as 22 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 rain, mainly before 4am. Mostly cloudy, with a low around 43. South wind around 6 mph becoming light and variable after midnight. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 55. North northwest wind 3 to 6 mph.
Saturday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 37.
Sunday
Patchy frost before 7am. Otherwise, sunny, with a high near 56.
Sunday Night
Patchy frost after 2am. Otherwise, clear, with a low around 36.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Campbell CA
 37.28°N 121.97°W (Elev. 226 ft)
Last Update:
12:27 am PST Dec 25, 2025
Forecast Valid:
6am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation