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
| 24 August 2026 Mon 13.8 ° C ( 56.8°F )  Moderate rain |
Feels Like : 9.1 ° C / 48.4°F Humidity : % 84 Pressure : 1010 mb Wind Speed : 27 kmph / 16.8 miles from WSW 
Visibility : 10 km Precipitation (rainfall) : 3.62 mm Cloud (%) : 84 |
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 |
|---|---|---|---|---|---|---|---|
| 24 August 2026 Mon |  Light rain shower |
13.3 ° C | 20.1 ° C | 16.3 ° C | % 82 | 42.8 km/h | 86% |
| 25 August 2026 Tue |  Patchy rain nearby |
16.5 ° C | 21.6 ° C | 19.2 ° C | % 75 | 26.6 km/h | 50% |
| 26 August 2026 Wed |  Overcast |
17.8 ° C | 24.2 ° C | 21.1 ° C | % 69 | 21.6 km/h | 14% |
| 27 August 2026 Thu | Light rain shower |
19.5 ° C | 25.1 ° C | 22.1 ° C | % 79 | 34.9 km/h | 81% |
| 28 August 2026 Fri |  Sunny |
17.8 ° C | 22.3 ° C | 20.4 ° C | % 71 | 27.4 km/h | 57% |
| 29 August 2026 Sat | Overcast |
16.2 ° C | 20.5 ° C | 18 ° C | % 63 | 18.4 km/h | 9% |
| 30 August 2026 Sun | Light rain shower |
18.5 ° C | 20.2 ° C | 19.2 ° C | % 81 | 32.4 km/h | 87% |
| 31 August 2026 Mon | Sunny |
17.7 ° C | 20.9 ° C | 19.2 ° C | % 75 | 26.6 km/h | 38% |
| 01 September 2026 Tue | Sunny |
15.1 ° C | 17.4 ° C | 16.4 ° C | % 57 | 29.2 km/h | 4% |
| 02 September 2026 Wed | Overcast |
14.2 ° C | 17.9 ° C | 16.4 ° C | % 58 | 20.5 km/h | 13% |
| 03 September 2026 Thu | Sunny |
16.2 ° C | 21.3 ° C | 18.3 ° C | % 60 | 18.4 km/h | 8% |
| 04 September 2026 Fri | Sunny |
16.8 ° C | 20.2 ° C | 18.1 ° C | % 64 | 16.6 km/h | 10% |
| 05 September 2026 Sat | Sunny |
16.6 ° C | 20.1 ° C | 18.6 ° C | % 72 | 23 km/h | 57% |
| 06 September 2026 Sun | Sunny |
16 ° C | 21.8 ° C | 18.5 ° C | % 69 | 28.1 km/h | 11% |
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