Weather Impacts for the Pacific Northwest This Week; Watching the Eastern U.S.

A series of Pacific fronts will bring periods of moderate rain, higher elevation snow, and gusty winds to the Pacific Northwest through this week. A more widespread precipitation event looks likely this weekend. In the Mid-Atlantic and Northeast U.S. a storm may bring gusty winds, low elevation rain, and high elevation wet snow Thursday into Saturday. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

NA

80°F

27°C

Humidity 35%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Heat Index80°F (27°C)
Last update 10 Nov 03:10 PM PST
Extended Forecast for

Portola Valley CA

Coastal Flood Advisory November 10, 03:47pm until November 13, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory November 10, 03:47pm until November 13, 04:00pm

    NOW until 4:00pm Fri

    Coastal Flood Advisory

  • Tonight

    Low: 52 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 77. Calm wind.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 73. South southeast wind 3 to 5 mph.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 55. South wind 9 to 11 mph.

    Low: 55 °F

    Chance Rain

  • Friday

    Friday: Rain, mainly after 10am.  High near 64. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Rain

  • Friday Night

    Friday Night: Rain, mainly before 10pm.  Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: A chance of rain, mainly before 10am.  Partly sunny, with a high near 63.

    High: 63 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Calm wind.
Veterans Day
Sunny, with a high near 77. Calm wind.
Wednesday Night
Mostly clear, with a low around 53. Calm wind.
Thursday
Mostly sunny, with a high near 73. South southeast wind 3 to 5 mph.
Thursday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 55. South wind 9 to 11 mph.
Friday
Rain, mainly after 10am. High near 64. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain, mainly before 10pm. Low around 51. Chance of precipitation is 80%.
Saturday
A chance of rain, mainly before 10am. Partly sunny, with a high near 63.
Saturday Night
A chance of rain, mainly after 4am. Mostly cloudy, with a low around 49.
Sunday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 60.
Sunday Night
Rain likely. Mostly cloudy, with a low around 47.
Monday
A chance of rain. Partly sunny, with a high near 58.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 45.
Tuesday
A chance of rain. Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Portola Valley CA
 37.37°N 122.22°W (Elev. 597 ft)
2:56 pm PST Nov 10, 2026
3pm PST Nov 10, 2026-6pm PST Nov 17, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database