San Jose, California Weather:
Thursday, May 21, 2026
Sunny with a Chance of Thunderstorms
Day 70°
Night 48°
Precipitation 2 %
Wind 4 mph
Weather Forecast History
Last Year's Weather on This Day (May 21, 2025)
Sunny Weather

Day

82°

Night

52°

Wind

11 mph

UV Index

11

Precipitation

1 %