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
| 17 June 2026 Wed 23.1 ° C ( 73.6°F )  Partly cloudy |
Feels Like : 24.1 ° C / 75.4°F Humidity : % 41 Pressure : 1006 mb Wind Speed : 22 kmph / 13.6 miles from SW 
Visibility : 24 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
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 |
|---|---|---|---|---|---|---|---|
| 16 June 2026 Tue |  Sunny |
12 ° C | 26.3 ° C | 18.7 ° C | % 60 | 28.4 km/h | 3% |
| 17 June 2026 Wed |  Moderate rain |
14.3 ° C | 19.4 ° C | 16.6 ° C | % 81 | 32 km/h | 83% |
| 18 June 2026 Thu | Moderate rain |
14.2 ° C | 19 ° C | 17 ° C | % 85 | 50.8 km/h | 84% |
| 19 June 2026 Fri |  Patchy rain nearby |
13.8 ° C | 18.6 ° C | 16 ° C | % 76 | 29.9 km/h | 57% |
| 20 June 2026 Sat | Patchy rain nearby |
11.8 ° C | 18.2 ° C | 15.1 ° C | % 70 | 28.1 km/h | 57% |
| 21 June 2026 Sun | Patchy rain nearby |
12 ° C | 17.9 ° C | 14 ° C | % 78 | 19.4 km/h | 36% |
| 22 June 2026 Mon | Patchy rain nearby |
13 ° C | 19.1 ° C | 15.5 ° C | % 80 | 18.4 km/h | 23% |
| 23 June 2026 Tue | Sunny |
13.3 ° C | 19.3 ° C | 16.5 ° C | % 76 | 11.9 km/h | 9% |
| 24 June 2026 Wed | Patchy rain nearby |
14.2 ° C | 21.9 ° C | 17.8 ° C | % 75 | 18.4 km/h | 36% |
| 25 June 2026 Thu | Patchy rain nearby |
14.7 ° C | 22.9 ° C | 18.4 ° C | % 78 | 12.6 km/h | 26% |
| 26 June 2026 Fri | Sunny |
15.6 ° C | 22.4 ° C | 19.4 ° C | % 73 | 9 km/h | 7% |
| 27 June 2026 Sat | Sunny |
17.7 ° C | 26.1 ° C | 22.2 ° C | % 75 | 24.5 km/h | 9% |
| 28 June 2026 Sun | Patchy rain nearby |
18.2 ° C | 23 ° C | 21.2 ° C | % 89 | 29.5 km/h | 75% |
| 29 June 2026 Mon | Sunny |
18.4 ° C | 25.2 ° C | 21.8 ° C | % 78 | 11.9 km/h | 8% |
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