Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

LA HONDA (LAHC1)

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

NA

54°F

12°C

Humidity 95%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 10 Apr 09:07 PM PDT
Extended Forecast for

2 Miles S Portola Valley CA

  • Tonight

    Tonight: Rain and thunderstorms likely before 3am, then a chance of rain.  Mostly cloudy, with a low around 50. South southwest wind 3 to 6 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Rain Likely

  • Saturday

    Saturday: A chance of rain and thunderstorms, then showers and possibly a thunderstorm after 3pm.  High near 58. South southwest wind 6 to 16 mph, with gusts as high as 33 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 58 °F

    Chance Rain
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 46. South southwest wind 9 to 16 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 46 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm.  High near 56. West southwest wind around 10 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 56 °F

    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of rain.  Mostly cloudy, with a low around 46. West southwest wind 5 to 8 mph becoming calm  in the evening.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance Rain

  • Monday

    Monday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Tonight
Rain and thunderstorms likely before 3am, then a chance of rain. Mostly cloudy, with a low around 50. South southwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of rain and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 58. South southwest wind 6 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 46. South southwest wind 9 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday
Showers and possibly a thunderstorm. High near 56. West southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 46. West southwest wind 5 to 8 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 61.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Portola Valley CA
 37.35°N 122.21°W (Elev. 1440 ft)
2:57 pm PDT Apr 10, 2026
9pm PDT Apr 10, 2026-6pm PDT Apr 17, 2026
 
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