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San Jose, California Weather:
Heat Advisory (Issued when high temperatures and humidity create conditions that may be hazardous during outdoor activity or prolonged exposure.)
Thursday, August 21, 2025
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 93°
Night 63°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 11

Weather Forecast History

Last Year's Weather on This Day (August 21, 2024)

Sunny WeatherSunny weather, clear skies and sunny weather.

Day

82°

Night

61°

Wind

9 mph

UV Index

9

Precipitation

0