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Areas of Hazardous Weather This Weekend

A series of cold fronts from North Pacific storms will bring periods of gusty winds, low elevation rainfall, and high elevation snow to the Pacific Northwest this weekend into next week. Heavy to excessive rainfall may produce areas of flooding over southern Texas this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

LOS ALTOS (LOAC1)

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

NA

57°F

14°C

Humidity 48%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 06 Nov 06:10 PM PST
Extended Forecast for

2 Miles E Portola Valley CA

Coastal Flood Advisory November 6, 07:07pm until November 13, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory November 6, 07:07pm until November 13, 04:00pm

    NOW until 4:00pm Fri

    Coastal Flood Advisory

  • Tonight

    Low: 50 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 77. Calm wind becoming west around 5 mph.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 51. Light west northwest wind.

    Low: 51 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 74 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. Light northwest wind.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 50. Calm wind.
Saturday
Mostly sunny, with a high near 77. Calm wind becoming west around 5 mph.
Saturday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 51. Light west northwest wind.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 51. Light northwest wind.
Monday
Mostly sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 52.
Veterans Day
Sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A slight chance of rain. Partly sunny, with a high near 72.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 52.
Friday
A chance of rain. Partly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Portola Valley CA
 37.38°N 122.19°W (Elev. 597 ft)
Last Update:
12:26 pm PST Nov 6, 2026
Forecast Valid:
7pm PST Nov 6, 2026-6pm PST Nov 13, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation