Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

58°F

14°C

Humidity 89%
Wind Speed SE 0 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 18 Jul 10:10 PM PDT
Extended Forecast for

2 Miles NNW Portola Valley CA

  • Tonight

    Tonight: Increasing clouds, with a low around 54. West wind 5 to 7 mph becoming calm  after midnight.

    Low: 54 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming north 5 to 7 mph in the morning.

    High: 82 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 54. Southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 54 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 80. Light and variable wind becoming west southwest 11 to 16 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. West southwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 23 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 54. West wind 5 to 7 mph becoming calm after midnight.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming north 5 to 7 mph in the morning.
Saturday Night
Increasing clouds, with a low around 54. Southwest wind 5 to 8 mph becoming calm in the evening.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 80. Light and variable wind becoming west southwest 11 to 16 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 56. West southwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 23 mph.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Portola Valley CA
 37.42°N 122.23°W (Elev. 397 ft)
1:26 pm PDT Jul 18, 2025
10pm PDT Jul 18, 2025-6pm PDT Jul 25, 2025
 
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Additional Resources

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