Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

54°F

12°C

Humidity 77%
Wind Speed WSW 2 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 26 Jul 02:10 AM PDT
Extended Forecast for

2 Miles NNE Portola Valley CA

  • Overnight

    Overnight: Mostly clear, with a low around 56. Southwest wind 3 to 5 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. Light and variable wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55. West wind 5 to 9 mph becoming light southwest  after midnight. Winds could gust as high as 18 mph.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. Light west southwest wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. West wind 6 to 11 mph, with gusts as high as 22 mph.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

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

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Wednesday Night

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

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 56. Southwest wind 3 to 5 mph.
Sunday
Sunny, with a high near 79. Light and variable wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 55. West wind 5 to 9 mph becoming light southwest after midnight. Winds could gust as high as 18 mph.
Monday
Sunny, with a high near 79. Light west southwest wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Monday Night
Mostly clear, with a low around 55. West wind 6 to 11 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Portola Valley CA
 37.4°N 122.2°W (Elev. 397 ft)
1:26 am PDT Jul 26, 2026
2am PDT Jul 26, 2026-6pm PDT Aug 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

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