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Fontana, California Weather:
Sunday, September 21, 2025
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 91°
Night 63°

Weather Forecast History

Last Year's Weather on This Day (September 21, 2024)

Sunny WeatherSunny weather, clear skies and sunny weather.

Day

82°

Night

59°

Wind

6 mph

UV Index

7

Precipitation

0