Hayward, California Weather:
Thursday, September 17, 2026
Cloudy Weather
Day 75°
Night 61°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (September 17, 2025)
Cloudy Night

Day

90°

Night

63°

Wind

6 mph

Precipitation

1 %