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

Hot Temperatures in the West; Heavy Rainfall and Flooding Potential in the Southwest

Hot to extremely hot temperatures are in place across coastal southern California again today and the interior Northwest U.S into Thursday, with the Pacific Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring heavy rainfall and the potential for flooding through the week. Read More >

Current conditions at

Palo Alto Airport (KPAO)

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

Partly Cloudy

57°F

14°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 03 Sep 06:47 AM PDT
Extended Forecast for

San Carlos CA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 82. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 82 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 59. West wind 5 to 8 mph becoming calm in the evening.

    Low: 59 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 80. Light and variable wind becoming west 6 to 11 mph in the afternoon.

    High: 80 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 61. West wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 77. West wind 6 to 14 mph.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 82. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.
Tonight
Increasing clouds, with a low around 59. West wind 5 to 8 mph becoming calm in the evening.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 80. Light and variable wind becoming west 6 to 11 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 61. West wind 7 to 13 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 77. West wind 6 to 14 mph.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Carlos CA
 37.5°N 122.25°W (Elev. 82 ft)
Last Update:
1:26 am PDT Sep 3, 2025
Forecast Valid:
7am PDT Sep 3, 2025-6pm PDT Sep 9, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation