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
| 19 December 2025 Fri 1.1 ° C ( 34°F )  Partly cloudy |
Feels Like : 0.4 ° C / 32.7°F Humidity : % 92 Pressure : 1008 mb Wind Speed : 3.6 kmph / 2.2 miles from SSW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15-day weather forecast for Ontario Airport, Ontario, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 18 December 2025 Thu |  Moderate rain |
-0.1 ° C | 3.5 ° C | 1.4 ° C | % 82 | 23 km/h | 86% |
| 19 December 2025 Fri |  Overcast |
-2 ° C | 11 ° C | 5.2 ° C | % 82 | 35.6 km/h | 0% |
| 20 December 2025 Sat |  Mist |
-7.2 ° C | -0.5 ° C | -3.8 ° C | % 95 | 9.4 km/h | 0% |
| 21 December 2025 Sun | Moderate rain |
-2.7 ° C | 6.5 ° C | 1.9 ° C | % 97 | 10.4 km/h | 89% |
| 22 December 2025 Mon |  Patchy rain nearby |
1.4 ° C | 7.7 ° C | 3.9 ° C | % 88 | 8.6 km/h | 77% |
| 23 December 2025 Tue | Patchy rain nearby |
3.8 ° C | 4.7 ° C | 4.2 ° C | % 89 | 7.6 km/h | 81% |
| 24 December 2025 Wed | Overcast |
3.9 ° C | 9.8 ° C | 7 ° C | % 72 | 17.6 km/h | 0% |
| 25 December 2025 Thu | Patchy rain nearby |
3.7 ° C | 11.4 ° C | 6.6 ° C | % 67 | 32.4 km/h | 87% |
| 26 December 2025 Fri | Patchy rain nearby |
2.5 ° C | 8.4 ° C | 4.6 ° C | % 67 | 17.6 km/h | 83% |
| 27 December 2025 Sat |  Sunny |
0.1 ° C | 6 ° C | 2.5 ° C | % 69 | 7.2 km/h | 0% |
| 28 December 2025 Sun | Partly Cloudy |
-0.2 ° C | 6.7 ° C | 2.7 ° C | % 61 | 19.8 km/h | 0% |
| 29 December 2025 Mon |  Cloudy |
2.3 ° C | 8.4 ° C | 4.9 ° C | % 50 | 22.7 km/h | 0% |
| 30 December 2025 Tue | Patchy rain nearby |
4.9 ° C | 7.5 ° C | 6.4 ° C | % 61 | 37.8 km/h | 86% |
| 31 December 2025 Wed | Sunny |
2.4 ° C | 7.5 ° C | 4.4 ° C | % 59 | 11.9 km/h | 0% |
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