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

Critical Fire Weather in the Plains; Unseasonably Warm in the Southwest and Southern U.S.

Unseasonably warm temperatures continue through the weekend across the Southwest and southern U.S., with more than 100 record or near record maximum temperatures forecast through the rest of the week and over the weekend. Elevated to critical fire weather conditions will persist across the Plains and Southeast U.S. this weekend. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

75°F

24°C

Humidity 20%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 27 Mar 12:10 PM PDT
Extended Forecast for

Cupertino CA

  • This Afternoon

    This Afternoon: Mostly cloudy, then gradually becoming sunny, with a high near 82. North wind 3 to 6 mph.

    High: 82 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 50. North northwest wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. Calm wind becoming north around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51. North northwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 73.

    High: 73 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A slight chance of rain after 11pm. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain, mainly after 11am. Partly sunny, with a high near 66.

    High: 66 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly cloudy, then gradually becoming sunny, with a high near 82. North wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 50. North northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 80. Calm wind becoming north around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 51. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 83. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Mostly cloudy, with a high near 73.
Monday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 51.
Tuesday
A chance of rain, mainly after 11am. Partly sunny, with a high near 66.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Partly sunny, with a high near 68.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Thursday
A chance of rain. Mostly sunny, with a high near 65.
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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:
11:36 am PDT Mar 27, 2026
Forecast Valid:
12pm PDT Mar 27, 2026-6pm PDT Apr 2, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation