St. Catharines Airport (YCM) 15 Day Weather Forecast, Saint Catharines Canada
Current weather conditions and 15 day weather forecast for St. Catharines Airport in Saint Catharines, 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 YCM
| 20 December 2025 Sat -3.9 ° C ( 25°F )  Light snow |
Feels Like : -13.2 ° C / 8.3°F Humidity : % 74 Pressure : 1011 mb Wind Speed : 46.4 kmph / 28.9 miles from W 
Visibility : 24 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15-day weather forecast for St. Catharines Airport, Saint Catharines, Canada
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 19 December 2025 Fri |  Patchy rain nearby |
-2.6 ° C | 10.5 ° C | 3.4 ° C | % 76 | 50.8 km/h | 89% |
| 20 December 2025 Sat |  Overcast |
-4.2 ° C | 2.5 ° C | -0.3 ° C | % 70 | 43.9 km/h | 0% |
| 21 December 2025 Sun |  Partly Cloudy |
-4.3 ° C | -2 ° C | -2 ° C | % 68 | 47.5 km/h | 0% |
| 22 December 2025 Mon |  Light freezing rain |
-5.7 ° C | -0.1 ° C | -2.9 ° C | % 80 | 24.5 km/h | 76% |
| 23 December 2025 Tue | Patchy rain nearby |
0 ° C | 3.9 ° C | 2.4 ° C | % 92 | 31.7 km/h | 89% |
| 24 December 2025 Wed | Partly Cloudy |
1.5 ° C | 3.2 ° C | 2.4 ° C | % 78 | 23.8 km/h | 0% |
| 25 December 2025 Thu | Partly Cloudy |
2.2 ° C | 4.5 ° C | 3.1 ° C | % 82 | 23.8 km/h | 0% |
| 26 December 2025 Fri |  Moderate rain |
3.3 ° C | 9.1 ° C | 6.1 ° C | % 91 | 28.1 km/h | 86% |
| 27 December 2025 Sat | Partly Cloudy |
-1.2 ° C | 0.9 ° C | 0.3 ° C | % 62 | 25.2 km/h | 0% |
| 28 December 2025 Sun |  Sunny |
-2 ° C | -0.9 ° C | -1.5 ° C | % 64 | 14.8 km/h | 0% |
| 29 December 2025 Mon | Sunny |
-1.8 ° C | 0.2 ° C | -0.8 ° C | % 60 | 17.3 km/h | 0% |
| 30 December 2025 Tue | Partly Cloudy |
0.3 ° C | 1.7 ° C | 0.8 ° C | % 69 | 29.2 km/h | 0% |
| 31 December 2025 Wed | Patchy rain nearby |
1.2 ° C | 2.8 ° C | 1.9 ° C | % 94 | 33.5 km/h | 85% |
| 01 January 2026 Thu |  Moderate snow |
-0.5 ° C | 0.7 ° C | 0 ° C | % 88 | 26.3 km/h | 75% |
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