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

AE6EO MOUNTAIN VIEW (AW020)

Lat: 37.4015°NLon: 122.10517°WElev: 65.0ft.

NA

60°F

16°C

Humidity 76%
Wind Speed SE 5 MPH
Barometer 29.61 in (1002.71 mb)
Dewpoint 52°F (11°C)
Visibility NA
Last update 24 Dec 06:35 PM PST
Extended Forecast for

Palo Alto CA

Flood Watch December 24, 06:51pm until December 26, 10:00pm
Wind Advisory December 24, 08:00pm until December 25, 10:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 24, 06:51pm until December 26, 10:00pm

    NOW until 10:00pm Fri

    Flood Watch

  • Tonight

    Low: 51 °F

    Severe
    Thunderstorms
    then Showers
    and Breezy

  • Christmas Day

    Christmas Day: Showers and possibly a thunderstorm before 1pm, then showers between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 58. South southwest wind 15 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 58 °F

    Severe
    Thunderstorms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 48. Breezy, with a south southwest wind 15 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Severe
    Thunderstorms
    and Breezy
    then Showers

  • Friday

    Friday: Showers. High near 57. South wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 44. South wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 10am. Mostly sunny, with a high near 55.

    High: 55 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 51. Breezy, with a south wind 16 to 24 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Christmas Day
Showers and possibly a thunderstorm before 1pm, then showers between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 58. South southwest wind 15 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 48. Breezy, with a south southwest wind 15 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers. High near 57. South wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 44. South wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 20 percent chance of showers before 10am. Mostly sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 55.
Sunday Night
Patchy frost after 4am. Otherwise, clear, with a low around 37.
Monday
Patchy frost before 7am. Otherwise, sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Palo Alto CA
 37.41°N 122.12°W (Elev. 112 ft)
Last Update:
4:56 pm PST Dec 24, 2025
Forecast Valid:
6pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation