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.

Clear

77°F

25°C

Humidity 44%
Wind Speed S 8 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 29 Sep 03:35 PM PDT
Extended Forecast for

Cupertino CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 74. South southwest wind around 9 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of rain.  Mostly cloudy, with a low around 61. Light and variable wind becoming south southeast around 6 mph.

    Low: 61 °F

    Chance Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain before 11am.  Mostly sunny, with a high near 75. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 75 °F

    Slight Chance
    Rain then
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60. Light south southeast wind.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 73. South southwest wind 3 to 6 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °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: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 74. South southwest wind around 9 mph.
Tonight
A 30 percent chance of rain. Mostly cloudy, with a low around 61. Light and variable wind becoming south southeast around 6 mph.
Tuesday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 75. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 60. Light south southeast wind.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 73. South southwest wind 3 to 6 mph. 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
Mostly sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 77.
Friday Night
Clear, with a low around 55.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 55.
Monday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.33°N 122.04°W (Elev. 243 ft)
1:26 pm PDT Sep 29, 2025
4pm PDT Sep 29, 2025-6pm PDT Oct 6, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database