Fontana, California Weather:
Monday, August 3, 2026
Sunny Weather
Day 97°
Night 64°
Precipitation 20 %
Wind 1 mph
UV Index (0 - 11+) 11
Weather Forecast History
Last Year's Weather on This Day (August 3, 2025)
Cloudy Night

Day

91°

Night

64°

Wind

5 mph

Precipitation

25 %