Coastal and Marine Impacts from Imelda and Humberto as Both Track Away from the Southeast U.S.

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine and rip current conditions to the east coast of Florida and Georgia today, spreading north along much of the east coast of the U.S. this week. Heavy rainfall north and west of Imelda falling across coastal Florida and Georgia into the Carolinas could cause isolated flash and urban flooding through Tuesday. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

NA

75°F

24°C

Humidity 46%
Wind Speed WSW 2 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 29 Sep 04:10 PM PDT
Extended Forecast for

4 Miles SW Atherton CA

  • This Afternoon

    This Afternoon: A 40 percent chance of rain.  Partly sunny, with a steady temperature around 74. Southwest wind around 7 mph.

    High: 74 °F

    Chance Rain

  • Tonight

    Tonight: A 40 percent chance of rain.  Mostly cloudy, with a low around 58. South southwest wind around 6 mph becoming calm  after midnight.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Chance Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain before 11am.  Mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 7 mph in the morning.  New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Slight Chance
    Rain then
    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 11pm.  Partly cloudy, with a low around 58. Light south wind.

    Low: 58 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 77. Calm wind becoming south around 6 mph in the morning.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 77 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 57. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 78.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of rain. Partly sunny, with a steady temperature around 74. Southwest wind around 7 mph.
Tonight
A 40 percent chance of rain. Mostly cloudy, with a low around 58. South southwest wind around 6 mph becoming calm after midnight. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 7 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 20 percent chance of rain after 11pm. Partly cloudy, with a low around 58. Light south wind.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 77. Calm wind becoming south around 6 mph in the morning. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 57. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 80.
Friday Night
Clear, with a low around 54.
Saturday
Sunny, with a high near 83.
Saturday Night
Clear, with a low around 53.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Atherton CA
 37.43°N 122.26°W (Elev. 400 ft)
1:26 pm PDT Sep 29, 2025
5pm PDT Sep 29, 2025-6pm PDT Oct 6, 2025
 
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Additional Resources

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