Sunnyvale, California Weather:
Wednesday, October 28, 2026
Cloudy Weather
Day 70°
Night 52°
Precipitation 9 %
Wind 2 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (October 28, 2025)
Night

Day

79°

Night

50°

Wind

4 mph

Precipitation

25 %