Sunnyvale, California Weather:
Sunday, May 17, 2026
Cloudy Weather
Day 73°
Night 55°
Precipitation 2 %
Wind 6 mph
Weather Forecast History
Last Year's Weather on This Day (May 17, 2025)
Cloudy Weather

Day

72°

Night

50°

Wind

14 mph

UV Index

11

Precipitation

4 %