Ontario, California Weather Tomorrow

Partly cloudy 23°

Partly cloudy, feels like 22°.

Ontario, California, United States · Wednesday, 4 November 2026

Low/High
12°/23°
Humidity
70%
Chance of rain
0%
Wind
8.6 km/h
UV
5.0

Temperature Tomorrow

Ontario Weather Tomorrow by Time of Day

Time of dayWeatherTemperatureChance of rain
MorningClear sky12–21°C0%
AfternoonClear sky22–23°C0%
EveningClear sky16–20°C0%
NightClear sky14–15°C0%

Ontario Weather Tomorrow — Wednesday, 4 November 2026

12 °/23 ° Partly cloudy Partly cloudy 0% 9 km/h

Low/High12°/23°

Humidity70%

Pressure977 hPa

Sunrise/Sunset

Ontario Hourly Weather Tomorrow

TimeWeatherTemperatureFeels likeRainHumidityWind
Partly cloudy 13°13°0% 91%7 km/h
Partly cloudy 13°12°0% 91%8 km/h
Partly cloudy 13°12°0% 91%8 km/h
Partly cloudy 13°12°0% 87%8 km/h
Partly cloudy 13°12°0% 85%7 km/h
Mostly clear 12°11°0% 84%7 km/h
Clear sky 13°12°0% 84%7 km/h
Mostly clear 14°14°0% 83%7 km/h
Clear sky 16°16°0% 76%8 km/h
Clear sky 17°17°0% 73%8 km/h
Clear sky 19°19°0% 67%6 km/h
Clear sky 21°21°0% 58%4 km/h
Clear sky 22°22°0% 49%4 km/h
Clear sky 23°22°0% 45%5 km/h
Clear sky 23°22°0% 41%6 km/h
Clear sky 23°22°0% 39%7 km/h
Clear sky 23°21°0% 40%8 km/h
Clear sky 20°19°0% 43%8 km/h
Clear sky 18°17°0% 60%8 km/h
Clear sky 17°16°0% 70%9 km/h
Clear sky 16°15°0% 76%7 km/h
Clear sky 15°14°0% 80%6 km/h
Clear sky 14°14°0% 81%6 km/h
Clear sky 14°13°0% 81%5 km/h

Summary

Tomorrow, Wednesday 4 November 2026, the weather in Ontario is forecast to be partly cloudy, with temperatures of 12–23°C and a chance of rain of up to 0%. It should stay mostly dry.

Updated at 20:48 local time, 3 November 2026

Ontario Hourly Temperature and Chance of Rain

Ontario Air Quality

Moderate · AQI 52

Air quality is acceptable; people who are unusually sensitive should consider limiting prolonged outdoor exertion.

PM2.5 (µg/m³)24
PM10 (µg/m³)25
O₃ (µg/m³)2.0
NO₂ (µg/m³)82
SO₂ (µg/m³)6.2
CO (µg/m³)351

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