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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

LA HONDA (LAHC1)

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

NA

56°F

13°C

Humidity 82%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 14 Nov 05:07 PM PST
Extended Forecast for

6 Miles NW Portola Valley CA

  • Tonight

    Tonight: A 10 percent chance of rain after 4am. Increasing clouds, with a low around 49. Calm wind becoming north northeast around 6 mph after midnight.

    Low: 49 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 60. North northeast wind around 5 mph becoming light and variable in the morning. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 52. Southwest wind 6 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 60. South wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 10pm, then rain likely after 10pm. Mostly cloudy, with a low around 49. South wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely

  • Monday

    Monday: Rain likely, mainly before 10am. Partly sunny, with a high near 57. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Rain Likely

  • Monday Night

    Monday Night: A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
A 10 percent chance of rain after 4am. Increasing clouds, with a low around 49. Calm wind becoming north northeast around 6 mph after midnight.
Saturday
A 30 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 60. North northeast wind around 5 mph becoming light and variable in the morning. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 52. Southwest wind 6 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain likely, mainly between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 60. South wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 10pm, then rain likely after 10pm. Mostly cloudy, with a low around 49. South wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Rain likely, mainly before 10am. Partly sunny, with a high near 57. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 45.
Tuesday
Sunny, with a high near 58.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
A slight chance of rain after 4pm. Mostly sunny, with a high near 59.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 48.
Thursday
A chance of rain. Partly sunny, with a high near 58.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 48.
Friday
A slight chance of rain. Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NW Portola Valley CA
 37.43°N 122.29°W (Elev. 1450 ft)
Last Update:
12:26 pm PST Nov 14, 2025
Forecast Valid:
5pm PST Nov 14, 2025-6pm PST Nov 21, 2025
 
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