Heavy Rain and Thunderstorms in the Lower Ohio Valley and Southeast; Flooding Continues Along the East Coast of Florida

An approaching cold front may produce isolated heavy rainfall and severe weather today over portions of the Lower Ohio Valley and Southeast. While the heavy rainfall is ending across east Florida, significant river flooding is forecast along the St. John’s and the Peace rivers through the end of the week as flood waters will be slow to recede. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

NA

69°F

21°C

Humidity 49%
Wind Speed NNE 2 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 04 Nov 12:10 PM PST
Extended Forecast for

2 Miles N Portola Valley CA

Coastal Flood Advisory November 4, 12:49pm until November 9, 01:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory November 4, 12:49pm until November 9, 01:00pm

    NOW until 1:00pm Mon

    Coastal Flood Advisory

  • This Afternoon

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. West northwest wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 21 mph.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, sunny, with a high near 72. Light and variable wind.

    High: 72 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. Light and variable wind.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 74. Light north wind.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 68. North northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Tonight
Mostly cloudy, with a low around 49. West northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph.
Thursday
Patchy fog before 9am. Otherwise, sunny, with a high near 72. Light and variable wind.
Thursday Night
Mostly clear, with a low around 49. Light and variable wind.
Friday
Sunny, with a high near 74. Light north wind.
Friday Night
Clear, with a low around 50.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Sunny, with a high near 73.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Portola Valley CA
 37.39°N 122.23°W (Elev. 397 ft)
12:26 pm PST Nov 4, 2026
12pm PST Nov 4, 2026-6pm PST Nov 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database