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 October 2026 Sat 21.6 ° C ( 70.9°F )  Sunny |
Feels Like : 19.4 ° C / 66.9°F Humidity : % 31 Pressure : 1018 mb Wind Speed : 4.3 kmph / 2.7 miles from N 
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 October 2026 Sat | Sunny |
12.1 ° C | 29.6 ° C | 19.7 ° C | % 35 | 6.8 km/h | 1% |
| 04 October 2026 Sun | Sunny |
13.2 ° C | 31.8 ° C | 21.6 ° C | % 23 | 7.9 km/h | 2% |
| 05 October 2026 Mon | Sunny |
16.5 ° C | 32.6 ° C | 23.5 ° C | % 18 | 10.8 km/h | 3% |
| 06 October 2026 Tue | Sunny |
13.8 ° C | 30.6 ° C | 21.3 ° C | % 21 | 10.4 km/h | 0% |
| 07 October 2026 Wed | Sunny |
12.8 ° C | 30.5 ° C | 20.8 ° C | % 20 | 6.5 km/h | 0% |
| 08 October 2026 Thu | Sunny |
14.8 ° C | 30.3 ° C | 21.5 ° C | % 21 | 5.4 km/h | 0% |
| 09 October 2026 Fri |  Overcast |
14.6 ° C | 28.6 ° C | 20.8 ° C | % 26 | 18.7 km/h | 6% |
| 10 October 2026 Sat | Overcast |
9.5 ° C | 22.6 ° C | 16.1 ° C | % 38 | 28.1 km/h | 7% |
| 11 October 2026 Sun | Sunny |
4.6 ° C | 16.5 ° C | 10 ° C | % 40 | 23.4 km/h | 2% |
| 12 October 2026 Mon | Sunny |
4.6 ° C | 19.8 ° C | 11.3 ° C | % 53 | 25.6 km/h | 7% |
| 13 October 2026 Tue | Sunny |
7.3 ° C | 18.4 ° C | 11.9 ° C | % 38 | 29.9 km/h | 2% |
| 14 October 2026 Wed | Sunny |
3.3 ° C | 18.5 ° C | 10.1 ° C | % 33 | 11.2 km/h | 1% |
| 15 October 2026 Thu | Sunny |
4.9 ° C | 17.8 ° C | 10.2 ° C | % 38 | 27.4 km/h | 1% |
| 16 October 2026 Fri | Sunny |
1.6 ° C | 15.2 ° C | 7.7 ° C | % 42 | 9.7 km/h | 1% |
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