National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Palo Alto Airport (KPAO)

Lat: 37.46667°NLon: 122.11667°WElev: 7.0ft.

Partly Cloudy

63°F

17°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 57°F (14°C)
Visibility 9.00 mi
Last update 01 Aug 08:47 AM PDT
Extended Forecast for

Atherton CA

  • Today

    Today: Sunny, with a high near 86. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. West wind 5 to 9 mph becoming south southwest after midnight.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Widespread haze before 9am. Sunny, with a high near 89. Light and variable wind becoming northwest 5 to 9 mph in the afternoon.

    High: 89 °F

    Haze then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 58. West northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 58 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 90. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.
Tonight
Mostly clear, with a low around 58. West wind 5 to 9 mph becoming south southwest after midnight.
Sunday
Widespread haze before 9am. Sunny, with a high near 89. Light and variable wind becoming northwest 5 to 9 mph in the afternoon.
Sunday Night
Clear, with a low around 58. West northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 90. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Clear, with a low around 60.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Atherton CA
 37.46°N 122.22°W (Elev. 115 ft)
Last Update:
2:01 am PDT Aug 1, 2026
Forecast Valid:
9am PDT Aug 1, 2026-6pm PDT Aug 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation