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

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

4 Miles NW Hollister CA

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

    NOW until 10:00pm Fri

    Flood Watch

  • Christmas Day

    High: 58 °F

    Rain

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm. Some of the storms could be severe. Low around 46. South southwest wind 15 to 20 mph becoming west 7 to 12 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Severe
    Thunderstorms
    then Rain

  • Friday

    Friday: Rain. High near 56. South wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 39. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Rain Likely
    then Chance
    Rain and
    Patchy Fog

  • Saturday

    Saturday: A 20 percent chance of rain. Patchy fog before 10am. Otherwise, partly sunny, with a high near 54. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 54 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Saturday Night

    Saturday Night: Patchy fog after 4am. Patchy frost after 2am. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Frost and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am. Patchy frost before 9am. Otherwise, sunny, with a high near 55.

    High: 55 °F

    Patchy Frost
    and Patchy
    Fog then
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 1am. Otherwise, clear, with a low around 34.

    Low: 34 °F

    Clear then
    Patchy Frost

Detailed Forecast

Christmas Day
Rain. High near 58. South wind 13 to 21 mph becoming west southwest in the morning. Winds could gust as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm. Some of the storms could be severe. Low around 46. South southwest wind 15 to 20 mph becoming west 7 to 12 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Rain. High near 56. South wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain likely, mainly before 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 39. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of rain. Patchy fog before 10am. Otherwise, partly sunny, with a high near 54. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Patchy fog after 4am. Patchy frost after 2am. Otherwise, mostly clear, with a low around 34.
Sunday
Patchy fog before 10am. Patchy frost before 9am. Otherwise, sunny, with a high near 55.
Sunday Night
Patchy frost after 1am. Otherwise, clear, with a low around 34.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 58.
Monday Night
Areas of frost after 4am. Otherwise, clear, with a low around 35.
Tuesday
Areas of frost. Otherwise, sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Hollister CA
 36.9°N 121.45°W (Elev. 197 ft)
Last Update:
8:59 am PST Dec 25, 2025
Forecast Valid:
10am 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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation