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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

55°F

13°C

Humidity 87%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 12 Apr 01:07 PM PDT
Extended Forecast for

4 Miles S Portola Valley CA

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 53. West southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 53 °F

    Showers

  • Tonight

    Tonight: A 40 percent chance of showers after 3am. Mostly cloudy, with a low around 45. West southwest wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance
    Showers

  • 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: Partly cloudy, with a low around 47. West northwest wind around 7 mph.

    Low: 47 °F

    Partly Cloudy

  • 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.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 53. West southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers after 3am. Mostly cloudy, with a low around 45. West southwest wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 58. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, 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.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Mostly cloudy, with a low around 47.
Thursday
Sunny, with a high near 63.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 68.
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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 pm PDT Apr 12, 2026
Forecast Valid:
1pm PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation