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

Heavy Rainfall Across the Southwest, Mid-Atlantic and Florida; Fire Weather Concerns in the Northwest and Alaska

Heavy to excessive rainfall may bring flooding to parts of Arizona, New Mexico, Florida, North Carolina, and Virginia today. Recently burned areas will be particularly vulnerable to flash flooding. Gusty winds and low humidity will bring elevated to critical fire weather conditions to parts of the Northwest U.S. and central Alaska today. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

82°F

28°C

Humidity 43%
Wind Speed NE 2 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Heat Index82°F (28°C)
Last update 02 Jul 03:10 PM PDT
Extended Forecast for

2 Miles NNW Portola Valley CA

  • Tonight

    Tonight: Increasing clouds, with a low around 53. West southwest wind 10 to 15 mph becoming light west. Winds could gust as high as 18 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 78. Light and variable wind becoming west southwest 12 to 17 mph in the morning. Winds could gust as high as 21 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. West southwest wind 7 to 11 mph.

    Low: 51 °F

    Mostly Clear

  • Independence Day

    Independence Day: Sunny, with a high near 76. West southwest wind 5 to 11 mph becoming northwest in the morning.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51. West wind 5 to 11 mph.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 53. West southwest wind 10 to 15 mph becoming light west. Winds could gust as high as 18 mph.
Thursday
Mostly sunny, with a high near 78. Light and variable wind becoming west southwest 12 to 17 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Mostly clear, with a low around 51. West southwest wind 7 to 11 mph.
Independence Day
Sunny, with a high near 76. West southwest wind 5 to 11 mph becoming northwest in the morning.
Friday Night
Mostly clear, with a low around 51. West wind 5 to 11 mph.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Portola Valley CA
 37.42°N 122.23°W (Elev. 397 ft)
Last Update:
1:26 pm PDT Jul 2, 2025
Forecast Valid:
5pm PDT Jul 2, 2025-6pm PDT Jul 9, 2025
 
Forecast Discussion
 
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Additional Resources

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