Hayward, California Weather:
Friday, August 21, 2026
Cloudy Weather
Day 75°
Night 57°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 8
Weather Forecast History
Last Year's Weather on This Day (August 21, 2025)
Cloudy Night

Day

91°

Night

57°

Wind

7 mph

Precipitation

0 %