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

CORRALITOS (CTOC1)

Lat: 36.99086°NLon: 121.80488°WElev: 327.0ft.

NA

55°F

13°C

Humidity 100%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 24 Dec 08:27 PM PST
Extended Forecast for

San Martin CA

Flood Watch December 24, 09:22pm until December 26, 10:00pm
Wind Advisory until December 25, 10:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 24, 09:22pm until December 26, 10:00pm
    Wind Advisory until December 25, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 50 °F

    Breezy.
    Showers then
    Severe
    Thunderstorms

  • Christmas Day

    Christmas Day: Showers and possibly a thunderstorm. Some of the storms could be severe. High near 58. South southwest wind 17 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 58 °F

    Severe
    Thunderstorms
    then Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 47. South wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Severe
    Thunderstorms
    then Showers

  • Friday

    Friday: Showers. High near 55. South southwest wind 8 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 10pm. Mostly cloudy, with a low around 42. South wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers. Mostly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Patchy frost after 3am. Otherwise, mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: Patchy frost before 8am. Otherwise, sunny, with a high near 56.

    High: 56 °F

    Patchy Frost
    then Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 50. Breezy, with a south southeast wind 18 to 25 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Christmas Day
Showers and possibly a thunderstorm. Some of the storms could be severe. High near 58. South southwest wind 17 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. 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. South wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers. High near 55. South southwest wind 8 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 42. South wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 56.
Saturday Night
Patchy frost after 3am. Otherwise, mostly clear, with a low around 35.
Sunday
Patchy frost before 8am. Otherwise, sunny, with a high near 56.
Sunday Night
Patchy frost after 3am. Otherwise, mostly clear, with a low around 36.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 60.
Monday Night
Patchy frost. Otherwise, mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
San Martin CA
 37.08°N 121.6°W (Elev. 276 ft)
Last Update:
4:56 pm PST Dec 24, 2025
Forecast Valid:
9pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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