Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Palo Alto Airport (KPAO)

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

Clear

63°F

17°C

Humidity 82%
Wind Speed NW 9 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 19 Aug 08:47 PM PDT
Extended Forecast for

Atherton CA

  • Overnight

    Overnight: Increasing clouds, with a low around 59. Calm wind.

    Low: 59 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 77. Light and variable wind becoming north northwest 5 to 10 mph in the afternoon.

    High: 77 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59. Northwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 76. Light and variable wind becoming northwest 5 to 10 mph in the morning.

    High: 76 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. West wind 5 to 10 mph.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Overnight
Increasing clouds, with a low around 59. Calm wind.
Thursday
Partly sunny, with a high near 77. Light and variable wind becoming north northwest 5 to 10 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 59. Northwest wind 5 to 7 mph becoming calm after midnight.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 76. Light and variable wind becoming northwest 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 59. West wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Partly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Atherton CA
 37.47°N 122.19°W (Elev. 66 ft)
11:26 pm PDT Aug 19, 2026
12am PDT Aug 20, 2026-6pm PDT Aug 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database