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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Mountain View, Moffett Field (KNUQ)

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

Clear

72°F

22°C

Humidity 64%
Wind Speed NNW 11 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Jun 12:10 PM PDT
Extended Forecast for

Cupertino CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. North northeast wind around 7 mph becoming northwest.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. North wind around 6 mph becoming calm after midnight.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. South southeast wind 3 to 8 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. South wind 6 to 8 mph.

    Low: 57 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 75. South wind 6 to 9 mph.

    High: 75 °F

    Mostly Sunny

  • Friday Night

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

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 82. North northeast wind around 7 mph becoming northwest.
Tonight
Mostly clear, with a low around 57. North wind around 6 mph becoming calm after midnight.
Thursday
Sunny, with a high near 78. South southeast wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 57. South wind 6 to 8 mph.
Juneteenth
Mostly sunny, with a high near 75. South wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 54.
Monday
Mostly sunny, with a high near 82.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 85.
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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:
11:40 am PDT Jun 17, 2026
Forecast Valid:
12pm PDT Jun 17, 2026-6pm PDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation