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

Critical Fire Weather in the High Plains; Heavy Rain and High Winds in Hawaii

Gusty winds and low relative humidity will bring widespread critical fire weather today across the central and southern High Plains. Heavy rain and thunderstorms may bring flooding to Hawaii through today. High winds across the islands may result in high surf, power outages, property damage, and difficult travel. Read More >

Current conditions at

LA HONDA (LAHC1)

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

NA

49°F

9°C

Humidity 94%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 09 Feb 04:07 AM PST
Extended Forecast for

Portola Valley CA

  • Today

    Today: Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 62. North northeast wind 3 to 7 mph.

    High: 62 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 1pm. High near 60. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm. Low around 48. South southwest wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Showers

  • Wednesday

    Wednesday: Rain likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then rain likely after 1pm. Mostly cloudy, with a high near 57. Southwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 44. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 10am. Mostly sunny, with a high near 59.

    High: 59 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 62. North northeast wind 3 to 7 mph.
Tonight
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 48. Calm wind.
Tuesday
Rain likely, then showers and possibly a thunderstorm after 1pm. High near 60. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm. Low around 48. South southwest wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then rain likely after 1pm. Mostly cloudy, with a high near 57. Southwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 40 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 44. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 20 percent chance of rain before 10am. Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 61.
Friday Night
Mostly cloudy, with a low around 44.
Saturday
Rain likely. Mostly cloudy, with a high near 58.
Saturday Night
Rain likely. Mostly cloudy, with a low around 44.
Sunday
Rain. Mostly cloudy, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portola Valley CA
 37.37°N 122.22°W (Elev. 597 ft)
Last Update:
12:53 am PST Feb 9, 2026
Forecast Valid:
4am PST Feb 9, 2026-6pm PST Feb 15, 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