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

Heavy Rain in the Southern U.S.; Active Weather Continues in Alaska

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains today, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. Another Bering system will impact the Alaskan West Coast and Central Interior through the weekend bringing moderate to heavy snow, high winds, and/or some blizzard conditions. Read More >

Current conditions at

LA HONDA (LAHC1)

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

NA

50°F

10°C

Humidity 92%
Wind Speed ENE 3 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 15 Feb 02:07 AM PST
Extended Forecast for

3 Miles S Portola Valley CA

  • Overnight

    Overnight: A 50 percent chance of rain. Mostly cloudy, with a steady temperature around 50. South southeast wind around 18 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance Rain

  • Sunday

    Sunday: Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. High near 51. South wind 18 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 51 °F

    Rain Likely
    then Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Steady temperature around 51. South wind 10 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 51 °F

    Showers

  • Washington's Birthday

    Washington's Birthday: Rain. High near 50. East wind 10 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 50 °F

    Rain

  • Monday Night

    Monday Night: Rain. Low around 46. West wind around 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm before 7am, then showers and possibly a thunderstorm after 7am. High near 50. Breezy. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 50 °F

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain before 4am, then rain, possibly mixed with snow. Some thunder is also possible. Low around 42. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 42 °F

    Showers then
    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow, becoming all rain after 7am. Cloudy, with a high near 48.

    High: 48 °F

    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Rain

Detailed Forecast

Overnight
A 50 percent chance of rain. Mostly cloudy, with a steady temperature around 50. South southeast wind around 18 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. High near 51. South wind 18 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Steady temperature around 51. South wind 10 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Washington's Birthday
Rain. High near 50. East wind 10 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Monday Night
Rain. Low around 46. West wind around 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain and possibly a thunderstorm before 7am, then showers and possibly a thunderstorm after 7am. High near 50. Breezy. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Rain before 4am, then rain, possibly mixed with snow. Some thunder is also possible. Low around 42. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday
Rain, possibly mixed with snow, becoming all rain after 7am. Cloudy, with a high near 48.
Wednesday Night
Rain. Mostly cloudy, with a low around 44.
Thursday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 47.
Thursday Night
Rain likely. Mostly cloudy, with a low around 41.
Friday
A chance of rain. Partly sunny, with a high near 48.
Friday Night
A chance of rain. Mostly cloudy, with a low around 43.
Saturday
A chance of rain. Partly sunny, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Portola Valley CA
 37.33°N 122.21°W (Elev. 2231 ft)
Last Update:
3:03 am PST Feb 15, 2026
Forecast Valid:
3am PST Feb 15, 2026-6pm PST Feb 21, 2026
 
Forecast Discussion
 
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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