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

Isolated Severe Thunderstorms and Critical Fire Weather Tuesday

Isolated severe thunderstorms with strong wind gusts and hail will be possible Tuesday from parts of central Plains northeastward into the Midwest. Additional storms capable of damaging winds will be possible across the eastern Florida peninsula. Elevated to critical fire weather including gusty winds and low relative humidity is forecast again Tuesday over much of the northern Great Plains. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

NA

66°F

19°C

Humidity 65%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Last update 11 May 08:10 PM PDT
Extended Forecast for

Cupertino CA

  • Tonight

    Tonight: Partly cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Calm wind becoming north 5 to 9 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. Northwest wind 5 to 9 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. West northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. West northwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 22 mph.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 52. Light and variable wind.
Tuesday
Mostly sunny, with a high near 78. Calm wind becoming north 5 to 9 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 52. Northwest wind 5 to 9 mph.
Wednesday
Mostly sunny, with a high near 71. West northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 48. West northwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 22 mph.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 51.
Friday
Sunny, with a high near 80.
Friday Night
Clear, with a low around 50.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.31°N 122.06°W (Elev. 610 ft)
Last Update:
1:26 pm PDT May 11, 2026
Forecast Valid:
9pm PDT May 11, 2026-6pm PDT May 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation