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

Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. 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 50%
Wind Speed NNW 8 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 30 Aug 07:15 PM PDT
Extended Forecast for

Sunnyvale CA

  • Tonight

    Tonight: Mostly clear, with a low around 63. North wind 5 to 8 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88. Light north northwest wind becoming north 6 to 11 mph in the afternoon.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 84. Calm wind becoming north northwest 5 to 9 mph in the afternoon.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. North northwest wind 5 to 10 mph becoming light west northwest in the evening.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 63. North wind 5 to 8 mph becoming calm in the evening.
Sunday
Sunny, with a high near 88. Light north northwest wind becoming north 6 to 11 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 61. North northwest wind 5 to 8 mph becoming calm in the evening.
Labor Day
Sunny, with a high near 84. Calm wind becoming north northwest 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 62. North northwest wind 5 to 10 mph becoming light west northwest in the evening.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sunnyvale CA
 37.38°N 122.05°W (Elev. 118 ft)
Last Update:
12:42 pm PDT Aug 30, 2025
Forecast Valid:
7pm PDT Aug 30, 2025-6pm PDT Sep 6, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation