Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

60°F

16°C

Humidity 74%
Wind Speed SSW 7 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 19 Jun 10:10 PM PDT
Extended Forecast for

2 Miles NNW Portola Valley CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. Light southwest wind.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 76 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 53. West southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 53 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 79 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54. West wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 56. Light southwest wind.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 53. West southwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 54. West wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 55.
Friday
Mostly sunny, with a high near 82.
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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 Jun 19, 2026
11pm PDT Jun 19, 2026-6pm PDT Jun 26, 2026
 
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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