Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Current conditions at

Mountain View, Moffett Field (KNUQ)

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

Clear

66°F

19°C

Humidity 72%
Wind Speed N 13 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 15 Jul 07:35 PM PDT
Extended Forecast for

Sunnyvale CA

  • Tonight

    Tonight: Mostly clear, with a low around 57. North wind 5 to 7 mph becoming southeast after midnight.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77. Light and variable wind becoming north northwest 5 to 9 mph in the afternoon.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 56. North northwest wind 5 to 8 mph becoming calm  after midnight.

    Low: 56 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 78. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 78 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. West wind 5 to 10 mph becoming light west southwest  after midnight.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Friday Night

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

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 57. North wind 5 to 7 mph becoming southeast after midnight.
Wednesday
Sunny, with a high near 77. Light and variable wind becoming north northwest 5 to 9 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 56. North northwest wind 5 to 8 mph becoming calm after midnight.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 78. Calm wind becoming west 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 57. West wind 5 to 10 mph becoming light west southwest after midnight.
Friday
Mostly sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 56.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Sunnyvale CA
 37.36°N 122.02°W (Elev. 128 ft)
1:26 pm PDT Jul 15, 2025
8pm PDT Jul 15, 2025-6pm PDT Jul 22, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database