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

Mountain View, Moffett Field (KNUQ)

Lat: 37.40583°NLon: 122.04806°WElev: 33.0ft.

Overcast

68°F

20°C

Humidity 68%
Wind Speed SSE 5 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 29 Sep 06:15 AM PDT
Extended Forecast for

Sunnyvale CA

  • Today

    Today: A 20 percent chance of rain after 11am.  Mostly cloudy, with a high near 73. Light south southeast wind becoming south 5 to 10 mph in the morning.

    High: 73 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 30 percent chance of rain.  Mostly cloudy, with a low around 62. Southeast wind 3 to 7 mph.

    Low: 62 °F

    Chance Rain

  • Tuesday

    Tuesday: A 10 percent chance of rain before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 74. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 74 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59. West southwest wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain.  Partly sunny, with a high near 72. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.  New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 60.

    Low: 60 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Thursday Night

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

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 73. Light south southeast wind becoming south 5 to 10 mph in the morning.
Tonight
A 30 percent chance of rain. Mostly cloudy, with a low around 62. Southeast wind 3 to 7 mph.
Tuesday
A 10 percent chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 74. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 59. West southwest wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 72. Light and variable wind becoming southwest 5 to 7 mph in the afternoon. 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 60.
Thursday
Partly sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 75.
Friday Night
Clear, with a low around 56.
Saturday
Sunny, with a high near 79.
Saturday Night
Clear, with a low around 56.
Sunday
Sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Sunnyvale CA
 37.38°N 122.02°W (Elev. 92 ft)
2:53 am PDT Sep 29, 2025
6am PDT Sep 29, 2025-6pm PDT Oct 5, 2025
 
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Additional Resources

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