Why is Fontana, California so hot?

Fontana sits in the Inland Empire far enough from the Pacific coast for marine influence to evaporate entirely, leaving the city exposed to extreme summer heat with temperatures routinely hitting the high 100s.

Does Fontana, CA have air quality problems?

Yes, Fontana sits in one of the smoggiest air basins in the nation, trapped between the San Bernardino and San Gabriel Mountains that prevent inland basin air from escaping.

What is Fontana, California's record high temperature?

Fontana's record high approaches 117°F.

How do Santa Ana winds affect Fontana, CA?

Santa Ana wind events each fall strip humidity to single digits and push extreme fire risk across the entire region.

Weather in Fontana, CA | Only Weather

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Fontana, CA Weather