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

47°F

8°C

Humidity 95%
Wind Speed SE 3 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 11 Apr 09:07 PM PDT
Extended Forecast for

2 Miles WSW Portola Valley CA

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 2am, then showers likely and possibly a thunderstorm after 4am.  Mostly cloudy, with a low around 45. Southwest wind 14 to 16 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 45 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 4pm, then a chance of showers and thunderstorms after 4pm.  Mostly cloudy, with a high near 53. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 53 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of showers.  Partly cloudy, with a low around 46. West southwest wind 5 to 9 mph becoming light southwest  after midnight.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 58. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. West northwest wind around 9 mph, with gusts as high as 18 mph.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 2am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 45. Southwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 53. Southwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 46. West southwest wind 5 to 9 mph becoming light southwest after midnight. 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 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 48. West northwest wind around 9 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Sunny, with a high near 63.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 48.
Saturday
Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Portola Valley CA
 37.37°N 122.25°W (Elev. 1473 ft)
1:26 pm PDT Apr 11, 2026
9pm PDT Apr 11, 2026-6pm PDT Apr 18, 2026
 
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