National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River to Impact the Northwest; Windy Conditions in the Northeast

A strong atmospheric river moving into northern California later today will bring a threat for moderate to heavy rainfall and flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. through Wednesday. Gusty winds and isolated showers are expected today in the Northeast U.S. behind a cold front. Wind Advisories have been issued. Read More >

Hazardous Weather Conditions

Current conditions at

LA HONDA (LAHC1)

Lat: 37.30523°NLon: 122.25525°WElev: 804.0ft.

NA

53°F

12°C

Humidity 95%
Wind Speed ENE 3 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 04 Nov 05:07 AM PST
Extended Forecast for

2 Miles WSW Portola Valley CA

Wind Advisory November 4, 10:00pm until November 5, 04:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Mostly sunny, with a high near 64. South southwest wind 3 to 7 mph. Winds could gust as high as 23 mph.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers after 10pm. Increasing clouds, with a low around 53. Breezy, with a south wind 17 to 23 mph, with gusts as high as 38 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Chance
    Showers and
    Breezy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 58. Breezy, with a south wind 18 to 23 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 58 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 53. South wind 5 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 63. Calm wind.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 64. South southwest wind 3 to 7 mph. Winds could gust as high as 23 mph.
Tonight
A 30 percent chance of showers after 10pm. Increasing clouds, with a low around 53. Breezy, with a south wind 17 to 23 mph, with gusts as high as 38 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 58. Breezy, with a south wind 18 to 23 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
A 40 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 53. South wind 5 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 63. Calm wind.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
A slight chance of showers. Partly sunny, with a high near 68.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 54.
Monday
A slight chance of showers. Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Portola Valley CA
 37.37°N 122.25°W (Elev. 1473 ft)
Last Update:
2:10 am PST Nov 4, 2025
Forecast Valid:
6am PST Nov 4, 2025-6pm PST Nov 10, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation