Ontario Airport (ONO) 15 Day Weather Forecast, Ontario United States
Current weather conditions and 15 day weather forecast for Ontario Airport in Ontario, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at ONO
| 03 August 2026 Mon 23.3 ° C ( 73.9°F )  Sunny |
Feels Like : 19.1 ° C / 66.4°F Humidity : % 23 Pressure : 1018 mb Wind Speed : 12.2 kmph / 7.6 miles from NNW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Ontario Airport, Ontario, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 03 August 2026 Mon | Sunny |
14.9 ° C | 30.6 ° C | 22.8 ° C | % 24 | 18.4 km/h | 0% |
| 04 August 2026 Tue |  Smoky haze |
13.1 ° C | 34.8 ° C | 23.9 ° C | % 20 | 11.2 km/h | 1% |
| 05 August 2026 Wed | Smoky haze |
15.3 ° C | 38.2 ° C | 26.9 ° C | % 12 | 11.9 km/h | 0% |
| 06 August 2026 Thu | Smoky haze |
18.2 ° C | 41.5 ° C | 30 ° C | % 11 | 9 km/h | 0% |
| 07 August 2026 Fri | Smoky haze |
20.4 ° C | 41.7 ° C | 30.8 ° C | % 12 | 24.8 km/h | 0% |
| 08 August 2026 Sat | Sunny |
18.3 ° C | 39.1 ° C | 28.3 ° C | % 16 | 17.3 km/h | 0% |
| 09 August 2026 Sun | Sunny |
17.9 ° C | 38.4 ° C | 27.9 ° C | % 16 | 21.2 km/h | 0% |
| 10 August 2026 Mon | Sunny |
17.4 ° C | 37.8 ° C | 27.3 ° C | % 20 | 20.5 km/h | 0% |
| 11 August 2026 Tue | Sunny |
17.6 ° C | 38.9 ° C | 27.6 ° C | % 22 | 16.9 km/h | 0% |
| 12 August 2026 Wed | Sunny |
16.5 ° C | 36.8 ° C | 26.3 ° C | % 17 | 13.7 km/h | 0% |
| 13 August 2026 Thu | Sunny |
16.7 ° C | 39.7 ° C | 27.9 ° C | % 16 | 13.3 km/h | 0% |
| 14 August 2026 Fri | Sunny |
19.4 ° C | 40.5 ° C | 29.3 ° C | % 19 | 19.8 km/h | 1% |
| 15 August 2026 Sat | Sunny |
18.3 ° C | 38.3 ° C | 27.8 ° C | % 17 | 15.1 km/h | 1% |
| 16 August 2026 Sun |  Partly Cloudy |
19.4 ° C | 37.7 ° C | 28.4 ° C | % 20 | 14.4 km/h | 3% |
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