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

Mountain View, Moffett Field (KNUQ)

Lat: 37.40583°NLon: 122.04806°WElev: 33.0ft.

Clear

61°F

16°C

Humidity 87%
Wind Speed N 4 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 11 Aug 11:55 PM PDT
Extended Forecast for

Cupertino CA

  • Overnight

    Overnight: Partly cloudy early, then becoming cloudy, with a low around 58. Northeast wind around 5 mph becoming light and variable.

    Low: 58 °F

    Becoming
    Cloudy

  • Wednesday

    Wednesday: Patchy smoke between 9am and 10am. Mostly cloudy, then gradually becoming sunny, with a high near 80. Southeast wind 3 to 8 mph.

    High: 80 °F

    Patchy Smoke
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 59. South southeast wind 5 to 7 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 73. South southwest wind 7 to 9 mph.

    High: 73 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58. Southwest wind 5 to 8 mph.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Friday Night

    Friday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 76.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Overnight
Partly cloudy early, then becoming cloudy, with a low around 58. Northeast wind around 5 mph becoming light and variable.
Wednesday
Patchy smoke between 9am and 10am. Mostly cloudy, then gradually becoming sunny, with a high near 80. Southeast wind 3 to 8 mph.
Wednesday Night
Increasing clouds, with a low around 59. South southeast wind 5 to 7 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 73. South southwest wind 7 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 58. Southwest wind 5 to 8 mph.
Friday
Partly sunny, with a high near 74.
Friday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 57.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 76.
Saturday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 56.
Sunday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 77.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 56.
Monday
Patchy fog. Otherwise, partly sunny, with a high near 77.
Monday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 57.
Tuesday
Patchy fog. Otherwise, partly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.31°N 122.03°W (Elev. 262 ft)
Last Update:
11:27 pm PDT Aug 11, 2026
Forecast Valid:
12am PDT Aug 12, 2026-6pm PDT Aug 18, 2026
 
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Additional Resources

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Chance of Precipitation