Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

80°F

27°C

Humidity 50%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 60°F (16°C)
Visibility NA
Heat Index81°F (27°C)
Last update 08 Aug 01:10 PM PDT
Extended Forecast for

Cupertino CA

Heat Advisory until August 9, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 9, 10:00pm

    NOW until 10:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 93. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88. Calm wind becoming west around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 90. North wind around 6 mph.
Tonight
Mostly clear, with a low around 61. Calm wind.
Sunday
Sunny, with a high near 93. Calm wind becoming north 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 60. North northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 88. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Patchy fog. Otherwise, partly cloudy, with a low around 58.
Friday
Patchy fog. Otherwise, mostly sunny, with a high near 80.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.31°N 122.06°W (Elev. 610 ft)
1:26 pm PDT Aug 8, 2026
1pm PDT Aug 8, 2026-6pm PDT Aug 14, 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