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

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

NA

63°F

17°C

Humidity 80%
Wind Speed S 17 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Last update 29 Sep 01:28 PM PDT
Extended Forecast for

4 Miles ENE Clayton CA

  • This Afternoon

    This Afternoon: A 20 percent chance of rain.  Mostly sunny, with a high near 68. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.

    High: 68 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 30 percent chance of rain.  Mostly cloudy, with a low around 59. West southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 59 °F

    Chance Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain before 11am.  Mostly sunny, with a high near 70. Southwest wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 70 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 11pm.  Mostly cloudy, with a low around 60. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 60 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 66. West southwest wind around 7 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 59.

    Low: 59 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of rain. Mostly sunny, with a high near 68. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.
Tonight
A 30 percent chance of rain. Mostly cloudy, with a low around 59. West southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 70. Southwest wind 7 to 13 mph, with gusts as high as 22 mph.
Tuesday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 60. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 66. West southwest wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 73.
Friday Night
Clear, with a low around 57.
Saturday
Sunny, with a high near 76.
Saturday Night
Clear, with a low around 57.
Sunday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Clayton CA
 37.95°N 121.88°W (Elev. 1358 ft)
1:26 pm PDT Sep 29, 2025
2pm PDT Sep 29, 2025-6pm PDT Oct 5, 2025
 
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Additional Resources

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