Ontario is a location in California, San Bernardino, United States. This page shows live, auto-refreshing weather for Ontario: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/Los_Angeles.

Frequently asked questions

What's the weather like in Ontario today?⌄

The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Ontario's exact coordinates. No fixed schedule, the page updates whenever you load it.

Is there a live radar for Ontario?⌄

Yes, use the "View live radar" link on this page for real-time precipitation radar centered on Ontario.

Is air quality tracked for Ontario?⌄

Yes, where the AQI panel above shows a value. It's sourced from the same live air-quality provider used across TodayWeather. If it reads "not available," air-quality coverage doesn't currently extend to this location.

How far ahead can I see the forecast for Ontario?⌄

Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.

What is the temperature in Ontario today?⌄

Live temperature for Ontario is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.

Will it rain in Ontario today?⌄

Check the rain chance in the hourly forecast above, or the 16-day outlook for Ontario further down this page, for the latest precipitation forecast.

Bookmark this page to check Ontario's weather forecast, temperature and air quality anytime — see the hourly weather forecast or the air quality index for more detail.