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

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

64°F

18°C

Humidity 73%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 08 Nov 09:10 AM PST
Extended Forecast for

2 Miles NW Portola Valley CA

Coastal Flood Advisory November 8, 10:07am until November 13, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory November 8, 10:07am until November 13, 04:00pm

    NOW until 4:00pm Fri

    Coastal Flood Advisory

  • Today

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 75. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 77. Light north wind.

    High: 77 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

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

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny, with a high near 74. Light north wind.
Tonight
Partly cloudy, with a low around 52. Calm wind.
Monday
Partly sunny, with a high near 75. Calm wind becoming north northwest around 6 mph in the afternoon.
Monday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 77. Light north wind.
Tuesday Night
Mostly clear, with a low around 50.
Veterans Day
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 52.
Friday
A slight chance of rain. Mostly sunny, with a high near 71.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 52.
Saturday
A chance of rain. Partly sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Portola Valley CA
 37.39°N 122.23°W (Elev. 397 ft)
Last Update:
8:42 am PST Nov 8, 2026
Forecast Valid:
10am PST Nov 8, 2026-6pm PST Nov 14, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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