Sunnyvale, California Weather:
Saturday, September 26, 2026
Cloudy Weather
Day 84°
Night 61°
Precipitation 1 %
Wind 4 mph
UV Index (0 - 11+) 5
Weather Forecast History
Last Year's Weather on This Day (September 26, 2025)
Night

Day

84°

Night

61°

Wind

5 mph

Precipitation

25 %