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

Hollister, CA (KCVH)

Lat: 36.8933°NLon: 121.4103°WElev: 229.0ft.

Partly Cloudy

63°F

17°C

Humidity 77%
Wind Speed SSE 39 MPH
Barometer 29.52 in (999.66 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 24 Dec 01:35 AM PST
Extended Forecast for

13 Miles E San Martin CA

Flood Watch December 25, 03:05am until December 26, 10:00pm
Wind Advisory December 25, 03:05am until December 25, 10:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 25, 03:05am until December 26, 10:00pm
    Wind Advisory December 25, 03:05am until December 25, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 50 °F

    Rain

  • Christmas Day

    Christmas Day: Showers and possibly a thunderstorm before 4pm, then rain and possibly a thunderstorm after 4pm.  High near 52. Breezy, with a south southwest wind 18 to 25 mph, with gusts as high as 45 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Rain.  Low around 43. Southwest wind 15 to 18 mph, with gusts as high as 34 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Rain

  • Friday

    Friday: Rain.  High near 50. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 10pm.  Mostly cloudy, with a low around 37. Light west southwest wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain.  Mostly sunny, with a high near 49.

    High: 49 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 4am.  Otherwise, mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am.  Otherwise, sunny, with a high near 49.

    High: 49 °F

    Frost then
    Sunny

Detailed Forecast

Overnight
Rain. Steady temperature around 50. South wind around 21 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Christmas Day
Showers and possibly a thunderstorm before 4pm, then rain and possibly a thunderstorm after 4pm. High near 52. Breezy, with a south southwest wind 18 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Low around 43. Southwest wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 50. South southwest wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 37. Light west southwest wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 49.
Saturday Night
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 32.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 49.
Sunday Night
Widespread frost, mainly after 3am. Otherwise, clear, with a low around 33.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 52.
Monday Night
Areas of frost. Otherwise, clear, with a low around 34.
Tuesday
Patchy frost. Otherwise, sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles E San Martin CA
 37.1°N 121.35°W (Elev. 1581 ft)
12:27 am PST Dec 25, 2025
3am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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