Fontana, California Weather:
Sunday, October 18, 2026
Sunny Weather
Day 91°
Night 59°
Precipitation 1 %
Wind 1 mph
UV Index (0 - 11+) 4
Weather Forecast History
Last Year's Weather on This Day (October 18, 2025)
Cloudy Night

Day

84°

Night

55°

Wind

4 mph

Precipitation

0 %