Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

LA HONDA (LAHC1)

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

NA

50°F

10°C

Humidity 83%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 18 Apr 11:07 PM PDT
Extended Forecast for

4 Miles S Portola Valley CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 65. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 65 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. South southeast wind 5 to 7 mph, with gusts as high as 18 mph.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: A 50 percent chance of rain.  Partly sunny, with a high near 62. South southeast wind 7 to 10 mph, with gusts as high as 25 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain.  Low around 51. South wind 5 to 7 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 51 °F

    Rain

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am.  High near 58. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then rain likely after 8pm.  Mostly cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of rain, mainly before 11am.  Partly sunny, with a high near 59.

    High: 59 °F

    Chance Rain

  • Wednesday Night

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

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 48. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 65. Calm wind becoming southwest around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 47. South southeast wind 5 to 7 mph, with gusts as high as 18 mph.
Monday
A 50 percent chance of rain. Partly sunny, with a high near 62. South southeast wind 7 to 10 mph, with gusts as high as 25 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Low around 51. South wind 5 to 7 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am. High near 58. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then rain likely after 8pm. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Wednesday
A chance of rain, mainly before 11am. Partly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Portola Valley CA
 37.3°N 122.23°W (Elev. 1447 ft)
11:21 pm PDT Apr 18, 2026
12am PDT Apr 19, 2026-6pm PDT Apr 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database