Severe Weather Threats Across the Plains; Dangerous Heat and Wildfire Concerns for the West; Watching the Tropics

Severe thunderstorms are expected across the Central Plains accompanied by damaging wind gusts and large hail. In addition, heavy rainfall may lead to instances of flash flooding from the Plains and mid-Atlantic regions. The heavy rainfall threat continues across Florida and across the northern Gulf as we monitor a tropical disturbance tracking westward. Critical fire weather for the Great Basin. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

71°F

22°C

Humidity 63%
Wind Speed E 2 MPH
Barometer NA
Dewpoint 58°F (14°C)
Visibility NA
Last update 15 Jul 10:10 AM PDT
Extended Forecast for

Cupertino CA

  • Today

    Today: Sunny, with a high near 83. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Patchy fog before 3am, then patchy fog after 4am.  Otherwise, mostly clear, with a low around 54. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am.  Otherwise, sunny, with a high near 79. South wind 3 to 7 mph.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 4am.  Otherwise, increasing clouds, with a low around 55. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 55 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, sunny, with a high near 82. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 83. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 54. West southwest wind around 6 mph becoming calm in the evening.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 79. South wind 3 to 7 mph.
Wednesday Night
Patchy fog after 4am. Otherwise, increasing clouds, with a low around 55. West wind 5 to 7 mph becoming calm in the evening.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 82. Calm wind becoming west 5 to 7 mph in the afternoon.
Thursday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 55.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 55.
Monday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.31°N 122.06°W (Elev. 610 ft)
6:22 am PDT Jul 15, 2025
10am PDT Jul 15, 2025-6pm PDT Jul 21, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database