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

Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

61°F

16°C

Humidity 88%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Last update 12 Aug 12:10 AM PDT
Extended Forecast for

5 Miles WSW Cupertino CA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 69. South southwest wind around 5 mph.

    Low: 69 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 79. South wind around 6 mph.

    High: 79 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 63. Southwest wind 5 to 7 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 72. South southwest wind around 8 mph, with gusts as high as 18 mph.

    High: 72 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 59. Southwest wind 5 to 7 mph.

    Low: 59 °F

    Slight Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 69. South southwest wind around 5 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 79. South wind around 6 mph.
Wednesday Night
Increasing clouds, with a low around 63. Southwest wind 5 to 7 mph.
Thursday
Partly sunny, with a high near 72. South southwest wind around 8 mph, with gusts as high as 18 mph.
Thursday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 59. Southwest wind 5 to 7 mph.
Friday
Partly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Partly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Cupertino CA
 37.29°N 122.14°W (Elev. 1798 ft)
Last Update:
11:27 pm PDT Aug 11, 2026
Forecast Valid:
1am PDT Aug 12, 2026-6pm PDT Aug 18, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation