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 March 2026 Thu 23.9 ° C ( 75°F )  Sunny |
Feels Like : 23.7 ° C / 74.7°F Humidity : % 26 Pressure : 1019 mb Wind Speed : 9 kmph / 5.6 miles from E 
Visibility : 16 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 |
|---|---|---|---|---|---|---|---|
| 18 March 2026 Wed | Sunny |
0.9 ° C | 25.2 ° C | 12.3 ° C | % 50 | 9 km/h | 0% |
| 19 March 2026 Thu |  Partly Cloudy |
3.5 ° C | 22.1 ° C | 13.2 ° C | % 55 | 10.1 km/h | 0% |
| 20 March 2026 Fri | Sunny |
6.1 ° C | 24.5 ° C | 14.6 ° C | % 58 | 11.5 km/h | 0% |
| 21 March 2026 Sat |  Mist |
7.7 ° C | 16.8 ° C | 12.1 ° C | % 68 | 39.6 km/h | 0% |
| 22 March 2026 Sun | Sunny |
2.3 ° C | 15.4 ° C | 8.6 ° C | % 31 | 10.8 km/h | 0% |
| 23 March 2026 Mon | Partly Cloudy |
7.6 ° C | 15.7 ° C | 9.9 ° C | % 33 | 9.7 km/h | 0% |
| 24 March 2026 Tue | Sunny |
10.8 ° C | 25.6 ° C | 16 ° C | % 38 | 7.9 km/h | 0% |
| 25 March 2026 Wed |  Cloudy |
6.4 ° C | 14.9 ° C | 12.4 ° C | % 41 | 36 km/h | 0% |
| 26 March 2026 Thu | Sunny |
1.2 ° C | 10.5 ° C | 5.5 ° C | % 40 | 16.2 km/h | 0% |
| 27 March 2026 Fri |  Overcast |
0.8 ° C | 15.3 ° C | 7.6 ° C | % 33 | 33.1 km/h | 0% |
| 28 March 2026 Sat | Partly Cloudy |
6.1 ° C | 16.3 ° C | 10.2 ° C | % 32 | 17.3 km/h | 0% |
| 29 March 2026 Sun |  Patchy rain nearby |
7.1 ° C | 11.9 ° C | 9.9 ° C | % 56 | 23 km/h | 89% |
| 30 March 2026 Mon | Partly Cloudy |
3 ° C | 9.2 ° C | 5.6 ° C | % 47 | 37.1 km/h | 0% |
| 31 March 2026 Tue | Sunny |
-0.7 ° C | 11.3 ° C | 5 ° C | % 48 | 13.3 km/h | 0% |
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