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

Mountain View, Moffett Field (KNUQ)

Lat: 37.40583°NLon: 122.04806°WElev: 33.0ft.

Partly Cloudy

54°F

12°C

Humidity 81%
Wind Speed ESE 8 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 25 Dec 09:30 PM PST
Extended Forecast for

2 Miles E Mountain View CA

Flood Watch December 25, 09:48pm until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 25, 09:48pm until December 26, 10:00pm

    NOW until 10:00pm Fri

    Flood Watch

  • Tonight

    Low: 48 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 4pm.  Mostly cloudy, with a high near 56. South southeast wind 10 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 44. South wind 5 to 7 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 53. North northwest wind 3 to 7 mph.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37. North wind around 5 mph becoming calm  in the evening.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Sunday Night

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

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before 10pm, then a chance of showers. Some of the storms could be severe. Mostly cloudy, with a low around 48. South wind 10 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 56. South southeast wind 10 to 13 mph, with gusts as high as 22 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 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 53. North northwest wind 3 to 7 mph.
Saturday Night
Mostly clear, with a low around 37. North wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 43.
New Year's Day
A slight chance of showers. Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Mountain View CA
 37.4°N 122.06°W (Elev. 79 ft)
2:44 pm PST Dec 25, 2025
9pm PST Dec 25, 2025-6pm PST Jan 1, 2026
 
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Additional Resources

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