Sunnyvale, California Weather:
Sunday, August 9, 2026
Sunny Weather
Day 81°
Night 61°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 10
Weather Forecast History
Last Year's Weather on This Day (August 9, 2025)
Night

Day

88°

Night

61°

Wind

5 mph

Precipitation

0 %