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
| 01 August 2026 Sat 26 ° C ( 78.8°F )  Cloudy |
Feels Like : 26.9 ° C / 80.4°F Humidity : % 54 Pressure : 1012 mb Wind Speed : 15.8 kmph / 9.8 miles from SSW 
Visibility : 24.1 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 |
|---|---|---|---|---|---|---|---|
| 31 July 2026 Fri |  Sunny |
16.1 ° C | 30 ° C | 23.3 ° C | % 64 | 15.8 km/h | 4% |
| 01 August 2026 Sat | Sunny |
18.5 ° C | 24.8 ° C | 21.9 ° C | % 67 | 13.3 km/h | 36% |
| 02 August 2026 Sun |  Light rain shower |
18.4 ° C | 20.8 ° C | 19.1 ° C | % 94 | 18 km/h | 93% |
| 03 August 2026 Mon | Sunny |
18.4 ° C | 22.3 ° C | 19.7 ° C | % 89 | 15.8 km/h | 77% |
| 04 August 2026 Tue | Sunny |
18 ° C | 23.1 ° C | 20.6 ° C | % 88 | 21.6 km/h | 65% |
| 05 August 2026 Wed |  Patchy rain nearby |
20.3 ° C | 26.5 ° C | 23 ° C | % 83 | 21.6 km/h | 25% |
| 06 August 2026 Thu | Sunny |
20.5 ° C | 27.5 ° C | 23.6 ° C | % 80 | 16.2 km/h | 10% |
| 07 August 2026 Fri | Sunny |
21.2 ° C | 27.6 ° C | 23.9 ° C | % 80 | 28.4 km/h | 57% |
| 08 August 2026 Sat |  Partly Cloudy |
20.4 ° C | 26.3 ° C | 23 ° C | % 82 | 27 km/h | 78% |
| 09 August 2026 Sun | Sunny |
21.5 ° C | 25.7 ° C | 23.2 ° C | % 82 | 24.5 km/h | 76% |
| 10 August 2026 Mon | Partly Cloudy |
17.5 ° C | 22.1 ° C | 20.1 ° C | % 74 | 12.6 km/h | 17% |
| 11 August 2026 Tue | Sunny |
16.8 ° C | 21.1 ° C | 18.8 ° C | % 72 | 15.1 km/h | 10% |
| 12 August 2026 Wed | Sunny |
16.1 ° C | 22 ° C | 19.2 ° C | % 66 | 12.6 km/h | 6% |
| 13 August 2026 Thu | Partly Cloudy |
15.3 ° C | 21.1 ° C | 18.5 ° C | % 82 | 17.6 km/h | 80% |
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