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
| 14 May 2026 Thu 8.2 ° C ( 46.8°F )  Overcast |
Feels Like : 4.8 ° C / 40.6°F Humidity : % 81 Pressure : 1012 mb Wind Speed : 23 kmph / 14.3 miles from NW 
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 |
|---|---|---|---|---|---|---|---|
| 14 May 2026 Thu |  Patchy rain nearby |
7.1 ° C | 9.9 ° C | 8.3 ° C | % 83 | 26.6 km/h | 78% |
| 15 May 2026 Fri |  Partly Cloudy |
6.3 ° C | 13.4 ° C | 9.5 ° C | % 81 | 22 km/h | 0% |
| 16 May 2026 Sat | Patchy rain nearby |
8 ° C | 14.9 ° C | 11.9 ° C | % 83 | 24.8 km/h | 87% |
| 17 May 2026 Sun | Patchy rain nearby |
11.2 ° C | 15.4 ° C | 13.4 ° C | % 91 | 11.9 km/h | 89% |
| 18 May 2026 Mon | Patchy rain nearby |
12.5 ° C | 22.5 ° C | 17.1 ° C | % 87 | 22.7 km/h | 80% |
| 19 May 2026 Tue | Patchy rain nearby |
15.8 ° C | 23.7 ° C | 18.7 ° C | % 82 | 34.6 km/h | 83% |
| 20 May 2026 Wed |  Sunny |
10.4 ° C | 15 ° C | 12.8 ° C | % 71 | 23.4 km/h | 0% |
| 21 May 2026 Thu | Sunny |
8.6 ° C | 14.7 ° C | 11.2 ° C | % 63 | 16.2 km/h | 0% |
| 22 May 2026 Fri |  Moderate rain |
7.7 ° C | 9.3 ° C | 9 ° C | % 87 | 40 km/h | 89% |
| 23 May 2026 Sat | Patchy rain nearby |
7.5 ° C | 11.9 ° C | 9.3 ° C | % 81 | 17.6 km/h | 87% |
| 24 May 2026 Sun | Sunny |
8 ° C | 16.5 ° C | 12 ° C | % 69 | 14 km/h | 0% |
| 25 May 2026 Mon | Sunny |
9.7 ° C | 18.3 ° C | 13.9 ° C | % 72 | 14.8 km/h | 0% |
| 26 May 2026 Tue | Patchy rain nearby |
12.1 ° C | 19.3 ° C | 15.9 ° C | % 79 | 26.3 km/h | 84% |
| 27 May 2026 Wed | Overcast |
12.8 ° C | 15.5 ° C | 14.8 ° C | % 93 | 23.4 km/h | 0% |
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