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

Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

Severe thunderstorms with a threat for large hail, isolated damaging winds and possibly a tornado are expected in parts of eastern Colorado today from mid afternoon to early evening. Several days of heavy rainfall will begin today over the western Gulf Coast where Flood Watches and excessive rainfall outlooks have been issued for today, Saturday, and Sunday. Read More >

Current conditions at

San Jose, San Jose International Airport (KSJC)

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

Clear

81°F

27°C

Humidity 36%
Wind Speed NW 6 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 21 May 12:35 PM PDT
Extended Forecast for

Santa Clara CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. Northwest wind 5 to 10 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 54. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 54 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 81. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 81 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. West northwest wind 5 to 8 mph becoming light and variable after midnight.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 73.

    High: 73 °F

    Patchy Fog
    then Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 84. Northwest wind 5 to 10 mph.
Tonight
Increasing clouds, with a low around 54. Northwest wind 5 to 8 mph becoming calm in the evening.
Friday
Partly sunny, then gradually becoming sunny, with a high near 81. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Friday Night
Mostly clear, with a low around 53. West northwest wind 5 to 8 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 80. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 51.
Memorial Day
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Santa Clara CA
 37.37°N 121.96°W (Elev. 49 ft)
Last Update:
12:51 pm PDT May 21, 2026
Forecast Valid:
12pm PDT May 21, 2026-6pm PDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation