Heat Continues Across the Central and Western U.S.; Tracking Hazardous Weather Across the Northern U.S.

Early-season record warmth will persist across portions of the western and central U.S. through mid week, with high temperatures approaching 90 degrees from Texas to the Ohio Valley. Rain and mountain snow are possible across the Pacific Northwest Wednesday, with Severe Thunderstorms and wintry weather expected across the Northeast Thursday and Friday. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

56°F

13°C

Humidity 50%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 24 Mar 05:10 AM PDT
Extended Forecast for

Cupertino CA

  • Today

    Today: Sunny, with a high near 81. Calm wind becoming north northwest 5 to 9 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. Light west wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45. West northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74. North wind 3 to 7 mph.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 81. Calm wind becoming north northwest 5 to 9 mph in the afternoon.
Tonight
Mostly clear, with a low around 50. North northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 75. Light west wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 45. West northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 74. North wind 3 to 7 mph.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.31°N 122.06°W (Elev. 610 ft)
1:41 am PDT Mar 24, 2026
6am PDT Mar 24, 2026-6pm PDT Mar 30, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database