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 68%
Wind Speed SE 4 MPH
Barometer 29.79 in (1008.81 mb)
Dewpoint 49°F (9°C)
Visibility NA
Last update 25 Dec 03:05 PM PST
Extended Forecast for

2 Miles NNE Palo Alto CA

Flood Watch December 25, 03:22pm until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 25, 03:22pm until December 26, 10:00pm

    NOW until 10:00pm Fri

    Flood Watch

  • Christmas Day

    High: 58 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 3am, then showers likely. Some of the storms could be severe. Low around 48. South wind 10 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Severe
    Thunderstorms
    then Showers
    Likely

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 57. South southeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. South wind around 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 10am. Mostly sunny, with a high near 54. North northwest wind 3 to 6 mph.

    High: 54 °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

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Christmas Day
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 58. South wind 18 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 3am, then showers likely. Some of the storms could be severe. Low around 48. South wind 10 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 57. South southeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. South wind around 6 mph. Chance of precipitation is 40%. New precipitation 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 54. North northwest wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 44.
New Year's Day
A chance of showers. Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Palo Alto CA
 37.41°N 122.12°W (Elev. 112 ft)
Last Update:
2:44 pm PST Dec 25, 2025
Forecast Valid:
3pm PST Dec 25, 2025-6pm PST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation