Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

San Jose, San Jose International Airport (KSJC)

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

Clear

70°F

21°C

Humidity 32%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 19 May 09:20 AM PDT
Extended Forecast for

Santa Clara CA

  • Today

    Today: Sunny, with a high near 86. Light northwest wind becoming north northwest 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. North northwest wind 5 to 10 mph becoming light and variable  in the evening. Winds could gust as high as 18 mph.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87. Calm wind becoming north northwest 5 to 9 mph in the afternoon.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. North northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 87 °F

    Sunny

  • Thursday Night

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

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Light northwest wind becoming north northwest 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.
Tonight
Mostly clear, with a low around 55. North northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 87. Calm wind becoming north northwest 5 to 9 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 54. North northwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 87. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 52.
Memorial Day
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Clara CA
 37.35°N 121.96°W (Elev. 89 ft)
8:47 am PDT May 19, 2026
9am PDT May 19, 2026-6pm PDT May 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database