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
| 14 December 2025 Sun -10.7 ° C ( 12.7°F )  Partly cloudy |
Feels Like : -15.1 ° C / 4.8°F Humidity : % 85 Pressure : 1015 mb Wind Speed : 7.6 kmph / 4.7 miles from NW 
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 |
|---|---|---|---|---|---|---|---|
| 14 December 2025 Sun | Partly Cloudy |
-15.2 ° C | -7.6 ° C | -10.9 ° C | % 67 | 18 km/h | 0% |
| 15 December 2025 Mon |  Overcast |
-11.1 ° C | -7.2 ° C | -9.1 ° C | % 81 | 17.3 km/h | 0% |
| 16 December 2025 Tue | Partly Cloudy |
-8.6 ° C | -3.4 ° C | -5.4 ° C | % 86 | 20.5 km/h | 0% |
| 17 December 2025 Wed |  Moderate snow |
-7.3 ° C | 2.3 ° C | -0.1 ° C | % 88 | 34.2 km/h | 73% |
| 18 December 2025 Thu |  Mist |
-13.4 ° C | -3 ° C | -8 ° C | % 90 | 29.2 km/h | 66% |
| 19 December 2025 Fri |  Light freezing rain |
-8.6 ° C | -0.4 ° C | -2.3 ° C | % 81 | 28.4 km/h | 70% |
| 20 December 2025 Sat |  Heavy snow |
-10.2 ° C | -4.1 ° C | -5.5 ° C | % 94 | 14.4 km/h | 79% |
| 21 December 2025 Sun | Light freezing rain |
-16.2 ° C | -7.4 ° C | -8.6 ° C | % 86 | 23 km/h | 84% |
| 22 December 2025 Mon | Light freezing rain |
-16.3 ° C | -3.9 ° C | -9.5 ° C | % 93 | 12.2 km/h | 0% |
| 23 December 2025 Tue | Light freezing rain |
-8.1 ° C | 3.4 ° C | -0.3 ° C | % 88 | 36 km/h | 89% |
| 24 December 2025 Wed |  Sunny |
-13.2 ° C | -9.5 ° C | -9.2 ° C | % 80 | 17.3 km/h | 0% |
| 25 December 2025 Thu | Partly Cloudy |
-16.1 ° C | -10.9 ° C | -13.4 ° C | % 82 | 6.8 km/h | 0% |
| 26 December 2025 Fri | Sunny |
-14 ° C | -7.8 ° C | -11.5 ° C | % 89 | 7.6 km/h | 0% |
| 27 December 2025 Sat | Sunny |
-15.7 ° C | -9.7 ° C | -13.3 ° C | % 83 | 15.5 km/h | 0% |
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