Weather in Ontario, California as of 03 June, 2025. Temperature, rain and forecast for this week.

The following widget shows the weather in Ontario, California as of 03 June, 2025. Click on the widget to open the weather forecast for Ontario. Please note: the weather in Ontario may change in any second, so make your decisions wisely and follow the news.

ONTARIO WEATHER

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Good weather and PEACE to everyone!

Check out more data on weather in California:

• Weather in Modesto
• Weather in Oxnard
• Weather in San Diego
• Weather in Long Beach
• Weather in Huntington Beach
• Weather in Garden Grove
• Weather in Lancaster
• Weather in Pomona
• Weather in Torrance
• Weather in Fullerton
• Weather in Concord
• Weather in Berkeley
• Weather in Ventura
• Weather in Richmond
• Weather in Santa Maria
• Weather in El Cajon
• Weather in Rialto