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

Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Current conditions at

Mountain View, Moffett Field (KNUQ)

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

Mostly Cloudy

59°F

15°C

Humidity 62%
Wind Speed NNE 5 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 46°F (8°C)
Visibility 8.00 mi
Last update 14 Apr 11:55 AM PDT
Extended Forecast for

Sunnyvale CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 45. West northwest wind 5 to 9 mph becoming light and variable after midnight.

    Low: 45 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 66. Light and variable wind becoming west northwest 5 to 10 mph in the morning.

    High: 66 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. West northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68. North northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 44.

    Low: 44 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 65. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Tonight
Increasing clouds, with a low around 45. West northwest wind 5 to 9 mph becoming light and variable after midnight.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 66. Light and variable wind becoming west northwest 5 to 10 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 47. West northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 68. North northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Thursday Night
Clear, with a low around 44.
Friday
Sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
A slight chance of rain. Partly sunny, with a high near 70.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 48.
Monday
A chance of rain. Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sunnyvale CA
 37.4°N 122.03°W (Elev. 46 ft)
Last Update:
11:26 am PDT Apr 14, 2026
Forecast Valid:
12pm PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

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