Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes
Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >
Current conditions at
LOS ALTOS (LOAC1)
Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.NA
67°F
19°C
| Humidity | 41% |
| Wind Speed | NW 2 MPH |
| Barometer | NA |
| Dewpoint | 42°F (6°C) |
| Visibility | NA |
| Last update | 21 Jun 10:10 AM PDT |
Extended Forecast for
Portola Valley CA
Today
High: 73 °F
Sunny
Tonight
Low: 47 °F
Clear
Sunday
High: 75 °F
Sunny
Sunday Night
Low: 48 °F
Mostly Clear
Monday
High: 78 °F
Sunny
Monday Night
Low: 49 °F
Mostly Clear
Tuesday
High: 77 °F
Mostly Sunny
Tuesday Night
Low: 49 °F
Mostly Clear
Wednesday
High: 78 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 73. West northwest wind 10 to 17 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 47. West northwest wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 26 mph.
Sunday
Sunny, with a high near 75. Light north northwest wind becoming west 6 to 11 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 48. West wind 6 to 14 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 78. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 79.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Portola Valley CA
37.39°N 122.23°W (Elev. 397 ft)
37.39°N 122.23°W (Elev. 397 ft)
5:55 am PDT Jun 21, 2025
10am PDT Jun 21, 2025-6pm PDT Jun 27, 2025
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