Current conditions at

LOS ALTOS (LOAC1)

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

NA

53°F

12°C

Humidity 62%
Wind Speed WSW 1 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 10 Oct 10:10 PM PDT
Extended Forecast for

Portola Valley CA

Coastal Flood Advisory October 10, 11:02pm until October 13, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 10, 11:02pm until October 13, 03:00pm

    NOW until 3:00pm Tue

    Coastal Flood Advisory

  • Tonight

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 46. Southwest wind 5 to 11 mph becoming southeast after midnight. Winds could gust as high as 21 mph.

    Low: 46 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 68. Southeast wind around 6 mph becoming calm  in the morning.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 46. West wind around 6 mph becoming calm  in the evening.

    Low: 46 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a steady temperature around 49. Southwest wind 7 to 11 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 69. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 46. Southwest wind 5 to 11 mph becoming southeast after midnight. Winds could gust as high as 21 mph.
Columbus Day
Sunny, with a high near 68. Southeast wind around 6 mph becoming calm in the morning.
Monday Night
Clear, with a low around 46. West wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Clear, with a low around 48.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Clear, with a low around 52.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 58.
Friday
Sunny, with a high near 90.
Friday Night
Clear, with a low around 59.
Saturday
Sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Portola Valley CA
 37.37°N 122.22°W (Elev. 597 ft)
8:15 pm PDT Oct 10, 2026
11pm PDT Oct 10, 2026-6pm PDT Oct 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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