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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

LA HONDA (LAHC1)

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

NA

49°F

9°C

Humidity 89%
Wind Speed SSE 4 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Wind Chill48°F (9°C)
Last update 26 Dec 08:07 AM PST
Extended Forecast for

2 Miles WSW Portola Valley CA

Flood Watch December 26, 09:03am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 26, 09:03am until December 26, 10:00pm

    NOW until 10:00pm Fri

    Flood Watch

  • Today

    High: 52 °F

    Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers, mainly between 11pm and 3am. Mostly cloudy, with a steady temperature around 47. West wind around 9 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 50. North wind 7 to 9 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. North northeast wind around 6 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 50. North northeast wind around 6 mph.

    High: 50 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

Detailed Forecast

Today
A 50 percent chance of showers. Partly sunny, with a high near 52. South southwest wind 11 to 18 mph, with gusts as high as 32 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A 40 percent chance of showers, mainly between 11pm and 3am. Mostly cloudy, with a steady temperature around 47. West wind around 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 50. North wind 7 to 9 mph.
Saturday Night
Mostly clear, with a low around 39. North northeast wind around 6 mph.
Sunday
Sunny, with a high near 50. North northeast wind around 6 mph.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 53.
Monday Night
Clear, with a low around 40.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Mostly sunny, with a high near 55.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 45.
New Year's Day
A chance of showers. Mostly cloudy, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Portola Valley CA
 37.37°N 122.25°W (Elev. 1473 ft)
Last Update:
8:46 am PST Dec 26, 2025
Forecast Valid:
9am PST Dec 26, 2025-6pm PST Jan 1, 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