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
| 15 September 2026 Tue 15.8 ° C ( 60.4°F )  Overcast |
Feels Like : 12.3 ° C / 54.1°F Humidity : % 66 Pressure : 1024 mb Wind Speed : 17.6 kmph / 11 miles from SSE 
Visibility : 10 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 |
|---|---|---|---|---|---|---|---|
| 15 September 2026 Tue | Overcast |
15.6 ° C | 22.2 ° C | 19 ° C | % 62 | 24.5 km/h | 15% |
| 16 September 2026 Wed | Overcast |
19.1 ° C | 21.5 ° C | 20.4 ° C | % 69 | 21.6 km/h | 24% |
| 17 September 2026 Thu |  Light rain shower |
17.2 ° C | 20 ° C | 18.3 ° C | % 82 | 22.7 km/h | 84% |
| 18 September 2026 Fri | Overcast |
16.6 ° C | 18.3 ° C | 17.7 ° C | % 71 | 15.1 km/h | 12% |
| 19 September 2026 Sat | Overcast |
13.3 ° C | 25 ° C | 18.8 ° C | % 72 | 27.7 km/h | 74% |
| 20 September 2026 Sun | Light rain shower |
16.9 ° C | 21 ° C | 18.5 ° C | % 87 | 25.6 km/h | 90% |
| 21 September 2026 Mon | Light rain shower |
14.8 ° C | 17 ° C | 15.6 ° C | % 86 | 35.6 km/h | 88% |
| 22 September 2026 Tue | Light rain shower |
15.2 ° C | 19.3 ° C | 16.8 ° C | % 93 | 33.5 km/h | 93% |
| 23 September 2026 Wed |  Patchy rain nearby |
16.2 ° C | 18.4 ° C | 17.1 ° C | % 87 | 16.9 km/h | 64% |
| 24 September 2026 Thu | Overcast |
15.3 ° C | 19.4 ° C | 17 ° C | % 78 | 24.8 km/h | 22% |
| 25 September 2026 Fri | Patchy rain nearby |
12.6 ° C | 16.7 ° C | 14.9 ° C | % 68 | 37.8 km/h | 62% |
| 26 September 2026 Sat |  Sunny |
12.5 ° C | 15.5 ° C | 14 ° C | % 65 | 26.6 km/h | 8% |
| 27 September 2026 Sun | Patchy rain nearby |
10.6 ° C | 14.5 ° C | 12.3 ° C | % 67 | 27.4 km/h | 47% |
| 28 September 2026 Mon | Sunny |
8 ° C | 13.4 ° C | 11.2 ° C | % 69 | 26.6 km/h | 7% |
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