Fontana, California Weather:
Friday, September 5, 2025
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 97°
Night 63°
Precipitation 20 %
Wind 1 mph
UV Index (0 - 11+) 8

Weather Forecast History

Last Year's Weather on This Day (September 5, 2024)

Hot DayHot and sunny weather, with high temperatures and strong sunshine.

Day

111°

Night

75°

Wind

7 mph

UV Index

8

Precipitation

0