Ottawa/Macdonald-Cartier International Airport (YOW) 15 Day Weather Forecast, Ottawa Canada
Current weather conditions and 15 day weather forecast for Ottawa/Macdonald-Cartier International Airport in Ottawa, Canada 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 YOW
| 13 December 2025 Sat -12.8 ° C ( 9°F )  Partly cloudy |
Feels Like : -15 ° C / 5°F Humidity : % 92 Pressure : 1014 mb Wind Speed : 3.6 kmph / 2.2 miles from NNE 
Visibility : 24 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15-day weather forecast for Ottawa/Macdonald-Cartier International Airport, Ottawa, Canada
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 December 2025 Sat |  Moderate snow |
-16 ° C | -0.9 ° C | -7.9 ° C | % 84 | 20.9 km/h | 77% |
| 14 December 2025 Sun |  Sunny |
-11.5 ° C | -8.5 ° C | -9.4 ° C | % 70 | 15.1 km/h | 0% |
| 15 December 2025 Mon |  Moderate or heavy snow showers |
-10.9 ° C | -6.5 ° C | -8.4 ° C | % 82 | 16.2 km/h | 60% |
| 16 December 2025 Tue |  Mist |
-17 ° C | -5.1 ° C | -9.3 ° C | % 93 | 14.8 km/h | 72% |
| 17 December 2025 Wed |  Light snow |
-3.4 ° C | 3.1 ° C | -0.2 ° C | % 89 | 29.2 km/h | 76% |
| 18 December 2025 Thu |  Heavy snow |
-7 ° C | -1.5 ° C | -3.2 ° C | % 91 | 29.9 km/h | 89% |
| 19 December 2025 Fri |  Light freezing rain |
-13.4 ° C | -3.9 ° C | -5.8 ° C | % 82 | 32.4 km/h | 70% |
| 20 December 2025 Sat | Light snow |
-11.9 ° C | -5.4 ° C | -7.5 ° C | % 95 | 13.7 km/h | 68% |
| 21 December 2025 Sun |  Freezing fog |
-11.2 ° C | -1.3 ° C | -4 ° C | % 94 | 9 km/h | 0% |
| 22 December 2025 Mon | Mist |
-15.5 ° C | -6.6 ° C | -9.9 ° C | % 92 | 22.3 km/h | 80% |
| 23 December 2025 Tue |  Moderate or heavy freezing rain |
-6.7 ° C | 3.2 ° C | -2 ° C | % 90 | 31.3 km/h | 89% |
| 24 December 2025 Wed |  Overcast |
-23.7 ° C | -17.3 ° C | -17.8 ° C | % 82 | 27.4 km/h | 0% |
| 25 December 2025 Thu | Mist |
-24.3 ° C | -6.8 ° C | -13.2 ° C | % 91 | 15.8 km/h | 61% |
| 26 December 2025 Fri | Mist |
-9.7 ° C | 0.5 ° C | -3.9 ° C | % 96 | 20.5 km/h | 68% |
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