Ontario International Airport (ONT) 15 Day Weather Forecast, Ontario United States
Current weather conditions and 15 day weather forecast for Ontario International 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 ONT
| 14 March 2026 Sat 16.1 ° C ( 61°F )  Clear |
Feels Like : 16.1 ° C / 61°F Humidity : % 48 Pressure : 1012 mb Wind Speed : 3.6 kmph / 2.2 miles from W 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15-day weather forecast for Ontario International Airport, Ontario, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 14 March 2026 Sat | Sunny |
15.8 ° C | 31.9 ° C | 20.9 ° C | % 41 | 17.3 km/h | 0% |
| 15 March 2026 Sun | Sunny |
11.4 ° C | 32 ° C | 21.2 ° C | % 39 | 8.6 km/h | 0% |
| 16 March 2026 Mon | Sunny |
15.9 ° C | 33.2 ° C | 23.6 ° C | % 18 | 13.7 km/h | 0% |
| 17 March 2026 Tue | Sunny |
20.2 ° C | 35 ° C | 26.6 ° C | % 19 | 14.4 km/h | 0% |
| 18 March 2026 Wed | Sunny |
20 ° C | 35.5 ° C | 25 ° C | % 24 | 14.4 km/h | 0% |
| 19 March 2026 Thu | Sunny |
21.6 ° C | 36 ° C | 27.7 ° C | % 23 | 14 km/h | 0% |
| 20 March 2026 Fri | Sunny |
22.2 ° C | 35.9 ° C | 27.9 ° C | % 22 | 15.5 km/h | 0% |
| 21 March 2026 Sat | Sunny |
20.4 ° C | 31.5 ° C | 25.3 ° C | % 29 | 16.2 km/h | 0% |
| 22 March 2026 Sun | Sunny |
17 ° C | 25.3 ° C | 21 ° C | % 36 | 13.3 km/h | 0% |
| 23 March 2026 Mon | Sunny |
14.4 ° C | 21.8 ° C | 17.1 ° C | % 58 | 15.5 km/h | 0% |
| 24 March 2026 Tue |  Partly Cloudy |
13.3 ° C | 18.4 ° C | 15.5 ° C | % 59 | 17.6 km/h | 0% |
| 25 March 2026 Wed |  Patchy rain nearby |
9.8 ° C | 17.9 ° C | 13.4 ° C | % 54 | 23 km/h | 82% |
| 26 March 2026 Thu | Sunny |
10 ° C | 23.1 ° C | 16.3 ° C | % 32 | 10.1 km/h | 0% |
| 27 March 2026 Fri | Sunny |
14.2 ° C | 25.5 ° C | 19.2 ° C | % 11 | 25.2 km/h | 0% |
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