Weather in Ontario, United States 🇺🇸
As of now, Ontario is 29°C and sunny, feeling like 27°C. Humidity is 29% with winds around 13 km/h, and the UV index is 9 (very high). The next few days in Ontario look set for about 15°C up to 30°C.
Hourly Forecast for Ontario
14-Day Forecast for Ontario
Sunny
Sunny
Sunny
Patchy rain nearby
Sunny
Overcast
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Additional Forecasts for Ontario
Air Quality
Historical Weather
Weather Forecasts for Other Cities in United States
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Best Time to Be Outside in Ontario Today
The most comfortable window in Ontario today looks like 17:00 to 20:00, when it is around 24°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in Ontario
What is the temperature in Ontario right now?
It is currently 29°C (85°F) in Ontario, sunny (feels like 27°C).
What's the weather like in Ontario right now?
Current weather in Ontario: Sunny, humidity 29%, wind 13 km/h SW.
What is today's forecast for Ontario?
Today in Ontario: high 30°C, low 15°C, sunny. Chance of rain: 2%.
What is the 7-day weather forecast for Ontario?
Daily highs and lows for Ontario:
- 2026-09-03: 30°C / 15°C
- 2026-09-04: 27°C / 18°C
- 2026-09-05: 30°C / 19°C
- 2026-09-06: 26°C / 22°C
- 2026-09-07: 32°C / 22°C
- 2026-09-08: 31°C / 23°C
- 2026-09-09: 32°C / 24°C
Is it going to rain in Ontario today?
There is a 2% chance of rain in Ontario today.
What is the wind speed in Ontario right now?
Wind in Ontario is currently 13 km/h (8 mph) from the SW.
What is the UV index in Ontario right now?
The UV index in Ontario is currently 9.3 (very high). Sun protection is recommended when the index is 3 or higher.
