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
| 05 December 2025 Fri -19.6 ° C ( -3.3°F )  Partly cloudy |
Feels Like : -26.4 ° C / -15.6°F Humidity : % 77 Pressure : 1023 mb Wind Speed : 9.4 kmph / 5.8 miles from S 
Visibility : 24 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
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 |
|---|---|---|---|---|---|---|---|
| 05 December 2025 Fri | Partly Cloudy |
-22.5 ° C | -7.3 ° C | -13.9 ° C | % 76 | 19.1 km/h | 0% |
| 06 December 2025 Sat |  Overcast |
-4.8 ° C | -0.6 ° C | -2.8 ° C | % 90 | 18.7 km/h | 0% |
| 07 December 2025 Sun | Overcast |
-10.8 ° C | -8.1 ° C | -8.3 ° C | % 65 | 16.6 km/h | 0% |
| 08 December 2025 Mon |  Sunny |
-15.8 ° C | -9.8 ° C | -12.7 ° C | % 81 | 15.1 km/h | 0% |
| 09 December 2025 Tue |  Moderate snow |
-12.5 ° C | -4.2 ° C | -8.6 ° C | % 89 | 20.9 km/h | 68% |
| 10 December 2025 Wed |  Heavy snow |
-4.4 ° C | 1.3 ° C | -0.3 ° C | % 99 | 24.1 km/h | 89% |
| 11 December 2025 Thu |  Light freezing rain |
-7.6 ° C | 1.5 ° C | -2.1 ° C | % 83 | 24.8 km/h | 81% |
| 12 December 2025 Fri | Light freezing rain |
-7.2 ° C | -2.6 ° C | -4.5 ° C | % 82 | 23 km/h | 69% |
| 13 December 2025 Sat | Overcast |
-6.1 ° C | -3.9 ° C | -5 ° C | % 77 | 27.7 km/h | 0% |
| 14 December 2025 Sun | Partly Cloudy |
-8.6 ° C | -4.5 ° C | -6.7 ° C | % 84 | 21.6 km/h | 0% |
| 15 December 2025 Mon | Sunny |
-10.4 ° C | -5.2 ° C | -7.5 ° C | % 88 | 13 km/h | 0% |
| 16 December 2025 Tue |  Fog |
-3.8 ° C | 1.9 ° C | -0.8 ° C | % 98 | 11.9 km/h | 74% |
| 17 December 2025 Wed |  Cloudy |
-3 ° C | 0.5 ° C | -1.5 ° C | % 91 | 9 km/h | 0% |
| 18 December 2025 Thu | Heavy snow |
-4.2 ° C | -3.1 ° C | -3.1 ° C | % 94 | 21.6 km/h | 64% |
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