
Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West
Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >
Current conditions at
LOS ALTOS (LOAC1)
Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.NA
73°F
23°C
| Humidity | 63% |
| Wind Speed | E 3 MPH |
| Barometer | NA |
| Dewpoint | 60°F (16°C) |
| Visibility | NA |
| Last update | 04 Aug 10:10 AM PDT |
Extended Forecast for
2 Miles SE Portola Valley CA
Today

High: 92 °F
Sunny
Tonight

Low: 58 °F
Clear
Wednesday

High: 88 °F
Sunny
Wednesday Night

Low: 58 °F
Clear
Thursday

High: 86 °F
Sunny
Thursday Night

Low: 60 °F
Mostly Clear
Friday

High: 90 °F
Sunny
Friday Night

Low: 62 °F
Clear
Saturday

High: 90 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 92. Light and variable wind.
Tonight
Clear, with a low around 58. Calm wind.
Wednesday
Sunny, with a high near 88. Light and variable wind.
Wednesday Night
Clear, with a low around 58. Light and variable wind.
Thursday
Sunny, with a high near 86. Light and variable wind.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 90.
Friday Night
Clear, with a low around 62.
Saturday
Sunny, with a high near 90.
Saturday Night
Clear, with a low around 62.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 80.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles SE Portola Valley CA
37.35°N 122.19°W (Elev. 1220 ft)
37.35°N 122.19°W (Elev. 1220 ft)
9:17 am PDT Aug 4, 2026
11am PDT Aug 4, 2026-6pm PDT Aug 10, 2026


