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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Palo Alto Airport (KPAO)

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

Clear

68°F

20°C

Humidity 72%
Wind Speed NNW 12 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 18 Sep 12:47 PM PDT
Extended Forecast for

San Carlos CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 77. West wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 57. West wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 79. Light and variable wind becoming west 6 to 11 mph in the afternoon.

    High: 79 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57. West wind 5 to 10 mph.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 73. West wind 3 to 8 mph.

    High: 73 °F

    Partly Sunny

  • Sunday Night

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

    Low: 57 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Monday Night

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

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 77. West wind 8 to 13 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 57. West wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 79. Light and variable wind becoming west 6 to 11 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 57. West wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 73. West wind 3 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Carlos CA
 37.5°N 122.28°W (Elev. 200 ft)
Last Update:
11:27 am PDT Sep 18, 2026
Forecast Valid:
1pm PDT Sep 18, 2026-6pm PDT Sep 24, 2026
 
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Additional Resources

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