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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Palo Alto Airport (KPAO)

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

Mostly Cloudy

70°F

21°C

Humidity 73%
Wind Speed N 9 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 28 Aug 01:47 PM PDT
Extended Forecast for

Atherton CA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly sunny, with a high near 77. North northeast wind 5 to 10 mph becoming northwest.

    High: 77 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 58. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76. Calm wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. West wind 5 to 8 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 76. Light and variable wind becoming west 5 to 8 mph in the morning.

    High: 76 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a high near 77. North northeast wind 5 to 10 mph becoming northwest.
Tonight
Mostly clear, with a low around 58. West northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 76. Calm wind becoming west northwest 5 to 9 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 57. West wind 5 to 8 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 76. Light and variable wind becoming west 5 to 8 mph in the morning.
Sunday Night
Mostly clear, with a low around 57.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Partly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 76.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 58.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Atherton CA
 37.45°N 122.18°W (Elev. 95 ft)
Last Update:
1:26 pm PDT Aug 28, 2026
Forecast Valid:
2pm PDT Aug 28, 2026-6pm PDT Sep 3, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation