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

Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Hazardous Weather Conditions

Current conditions at

LA HONDA (LAHC1)

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

NA

36°F

2°C

Humidity 99%
Wind Speed ENE 3 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 20 Feb 08:07 AM PST
Extended Forecast for

4 Miles S Portola Valley CA

Cold Weather Advisory until February 20, 09:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory until February 20, 09:00am

    NOW until 9:00am Fri

    Cold Weather Advisory

  • Today

    High: 51 °F

    Partly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 39. Calm wind becoming southeast around 5 mph after midnight.

    Low: 39 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 54. South wind 7 to 11 mph, with gusts as high as 28 mph.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 4am. Partly cloudy, with a low around 48. South southeast wind around 11 mph, with gusts as high as 31 mph.

    Low: 48 °F

    Chance Rain

  • Sunday

    Sunday: A 40 percent chance of rain, mainly before 10am. Partly sunny, with a high near 61. South southeast wind around 11 mph, with gusts as high as 30 mph.

    High: 61 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    Rain

  • Monday

    Monday: A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain likely, mainly after 10pm. Cloudy, with a low around 55.

    Low: 55 °F

    Rain Likely

Detailed Forecast

Today
Partly sunny, with a high near 51. Calm wind.
Tonight
Increasing clouds, with a low around 39. Calm wind becoming southeast around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 54. South wind 7 to 11 mph, with gusts as high as 28 mph.
Saturday Night
A 30 percent chance of rain, mainly after 4am. Partly cloudy, with a low around 48. South southeast wind around 11 mph, with gusts as high as 31 mph.
Sunday
A 40 percent chance of rain, mainly before 10am. Partly sunny, with a high near 61. South southeast wind around 11 mph, with gusts as high as 30 mph.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 51.
Monday
A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 64.
Monday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 55.
Tuesday
Rain. Cloudy, with a high near 59.
Tuesday Night
Rain. Cloudy, with a low around 53.
Wednesday
Rain likely. Mostly cloudy, with a high near 62.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 52.
Thursday
A chance of rain. Mostly cloudy, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Portola Valley CA
 37.3°N 122.23°W (Elev. 1447 ft)
Last Update:
12:32 am PST Feb 20, 2026
Forecast Valid:
8am PST Feb 20, 2026-6pm PST Feb 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation