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
| 08 December 2025 Mon -2.2 ° C ( 28°F )  Mist |
Feels Like : -3.5 ° C / 25.7°F Humidity : % 96 Pressure : 1027 mb Wind Speed : 4 kmph / 2.5 miles from ESE 
Visibility : 9.7 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 |
|---|---|---|---|---|---|---|---|
| 08 December 2025 Mon |  Partly Cloudy |
-0.2 ° C | 10.9 ° C | 4.5 ° C | % 85 | 12.2 km/h | 0% |
| 09 December 2025 Tue |  Overcast |
6.1 ° C | 9.4 ° C | 7.4 ° C | % 93 | 17.3 km/h | 0% |
| 10 December 2025 Wed |  Patchy rain nearby |
5.9 ° C | 15.2 ° C | 10.4 ° C | % 79 | 32.8 km/h | 78% |
| 11 December 2025 Thu | Patchy rain nearby |
12.5 ° C | 17.7 ° C | 14.5 ° C | % 58 | 36.4 km/h | 89% |
| 12 December 2025 Fri |  Sunny |
8.1 ° C | 14 ° C | 10.6 ° C | % 71 | 8.3 km/h | 0% |
| 13 December 2025 Sat | Sunny |
5.4 ° C | 12.4 ° C | 8.1 ° C | % 76 | 4.7 km/h | 0% |
| 14 December 2025 Sun | Sunny |
3.5 ° C | 11 ° C | 6.5 ° C | % 69 | 4.7 km/h | 0% |
| 15 December 2025 Mon | Sunny |
2.4 ° C | 10.4 ° C | 5.6 ° C | % 60 | 7.6 km/h | 0% |
| 16 December 2025 Tue | Partly Cloudy |
3.5 ° C | 8.6 ° C | 5.3 ° C | % 54 | 7.9 km/h | 0% |
| 17 December 2025 Wed | Patchy rain nearby |
4.4 ° C | 7.8 ° C | 6.4 ° C | % 62 | 27 km/h | 84% |
| 18 December 2025 Thu |  Cloudy |
8.4 ° C | 14.2 ° C | 11.5 ° C | % 52 | 30.6 km/h | 0% |
| 19 December 2025 Fri | Sunny |
4.9 ° C | 9.5 ° C | 6.6 ° C | % 51 | 13.3 km/h | 0% |
| 20 December 2025 Sat |  Moderate rain |
3.9 ° C | 5.2 ° C | 5 ° C | % 85 | 6.8 km/h | 82% |
| 21 December 2025 Sun | Patchy rain nearby |
4.7 ° C | 6.8 ° C | 6.2 ° C | % 90 | 8.6 km/h | 74% |
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