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

Storm Surge Flooding Continues in the Outer Banks; Dangerous Heat in the West

Storm surge flooding will continue through tonight in the Outer Banks in North Carolina as Hurricane Erin continues to move away from the U.S. Wind gusts up to tropical storm force are possible along the Mid-Atlantic and southern New England coasts through Friday. A dangerous, record heat wave will continue across the Desert Southwest and the Central Valley of California through Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

Mountain View, Moffett Field (KNUQ)

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

Clear

64°F

18°C

Humidity 77%
Wind Speed N 6 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 22 Aug 12:35 AM PDT
Extended Forecast for

Cupertino CA

Heat Advisory August 22, 01:09am until August 23, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 22, 01:09am until August 23, 09:00pm

    NOW until 9:00pm Sat

    Heat Advisory

  • Overnight

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 89. Light north wind becoming north northwest 5 to 9 mph in the afternoon.

    High: 89 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. North wind around 6 mph becoming calm in the evening.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87. Calm wind becoming north northwest 5 to 8 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61. North northwest wind 5 to 9 mph becoming light in the evening.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 60. Light north wind.
Friday
Partly sunny, then gradually becoming sunny, with a high near 89. Light north wind becoming north northwest 5 to 9 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 62. North wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 87. Calm wind becoming north northwest 5 to 8 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 61. North northwest wind 5 to 9 mph becoming light in the evening.
Sunday
Sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.33°N 122.04°W (Elev. 243 ft)
Last Update:
1:26 pm PDT Aug 21, 2025
Forecast Valid:
1am PDT Aug 22, 2025-6pm PDT Aug 28, 2025
 
Forecast Discussion
 
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Additional Resources

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