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

Severe Weather and Flooding Threats for the Central U.S.; Fire Weather Concerns for the Western U.S.

Severe weather and flooding threats will continue for portions of the central U.S. Rounds of heavy rainfall may cause impactful flash flooding in parts of southern Kansas and Missouri. Hot and dry conditions will fuel fire weather concerns for the Intermountain West, and dry thunderstorms may spark additional wildfires. Dangerous heat will build across the southern U.S. Friday into the weekend. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

59°F

15°C

Humidity 83%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Last update 25 Jun 04:10 AM PDT
Extended Forecast for

Cupertino CA

  • Today

    Today: Sunny, with a high near 78. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 56. Northwest wind 5 to 8 mph becoming light and variable after midnight.

    Low: 56 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 75. Light west southwest wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 75 °F

    Partly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 58. West wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 71. West northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 78. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Tonight
Increasing clouds, with a low around 56. Northwest wind 5 to 8 mph becoming light and variable after midnight.
Friday
Partly sunny, with a high near 75. Light west southwest wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Friday Night
Increasing clouds, with a low around 58. West wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 71. West northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.31°N 122.03°W (Elev. 262 ft)
Last Update:
1:51 am PDT Jun 25, 2026
Forecast Valid:
4am PDT Jun 25, 2026-6pm PDT Jul 1, 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