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

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

San Jose, San Jose International Airport (KSJC)

Lat: 37.35917°NLon: 121.92417°WElev: 59.0ft.

Overcast

61°F

16°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 Aug 04:30 AM PDT
Extended Forecast for

Santa Clara CA

  • Today

    Today: Partly sunny, with a high near 79. Calm wind becoming north northwest 5 to 9 mph in the afternoon.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. North northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 78. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 78 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. Light northwest wind increasing to 5 to 9 mph in the afternoon.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 79. Calm wind becoming north northwest 5 to 9 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 59. North northwest wind 5 to 8 mph becoming calm after midnight.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 78. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Friday Night
Mostly clear, with a low around 58. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 79. Light northwest wind increasing to 5 to 9 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Santa Clara CA
 37.35°N 121.96°W (Elev. 89 ft)
Last Update:
2:16 am PDT Aug 20, 2026
Forecast Valid:
4am PDT Aug 20, 2026-6pm PDT Aug 26, 2026
 
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Additional Resources

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