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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

57°F

14°C

Humidity 87%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 23 Aug 01:10 AM PDT
Extended Forecast for

2 Miles SSW Cupertino CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 87. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 87 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 84 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 56. North northeast wind around 6 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, partly sunny, with a high near 84.

    High: 84 °F

    Areas Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 57. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 87. Calm wind becoming north 5 to 7 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 58. Calm wind.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming north 5 to 7 mph in the afternoon.
Monday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 56. North northeast wind around 6 mph becoming calm in the evening.
Tuesday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Cupertino CA
 37.28°N 122.06°W (Elev. 666 ft)
Last Update:
11:27 pm PDT Aug 22, 2026
Forecast Valid:
1am PDT Aug 23, 2026-6pm PDT Aug 29, 2026
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation