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

Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Current conditions at

Mountain View, Moffett Field (KNUQ)

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

Clear

63°F

17°C

Humidity 77%
Wind Speed NNW 8 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 55°F (13°C)
Visibility 8.00 mi
Last update 22 Sep 07:15 PM PDT
Extended Forecast for

Sunnyvale CA

  • Tonight

    Tonight: Mostly clear, with a low around 56. North wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Calm wind becoming north northwest 5 to 8 mph in the afternoon.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60. Light and variable wind.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59. West wind 5 to 10 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Friday Night

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

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 56. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 84. Calm wind becoming north northwest 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 60. Light and variable wind.
Thursday
Sunny, with a high near 84. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 59. West wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 55.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 80.
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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:
1:26 pm PDT Sep 22, 2026
Forecast Valid:
7pm PDT Sep 22, 2026-6pm PDT Sep 29, 2026
 
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Additional Resources

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