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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

LA HONDA (LAHC1)

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

NA

48°F

9°C

Humidity 99%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 13 Apr 01:07 AM PDT
Extended Forecast for

4 Miles S Portola Valley CA

  • Overnight

    Overnight: A 30 percent chance of rain, mainly between 3am and 4am. Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Chance Rain

  • Monday

    Monday: Mostly sunny, with a high near 58. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 47. West northwest wind around 7 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. West northwest wind 5 to 7 mph.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47. Northwest wind around 7 mph.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly between 3am and 4am. Mostly cloudy, with a low around 44. Calm wind.
Monday
Mostly sunny, with a high near 58. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 47. West northwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 59. West northwest wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 47. Northwest wind around 7 mph.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Sunny, with a high near 62.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
A slight chance of rain. Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Portola Valley CA
 37.3°N 122.23°W (Elev. 1447 ft)
Last Update:
1:26 am PDT Apr 13, 2026
Forecast Valid:
1am PDT Apr 13, 2026-6pm PDT Apr 19, 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