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
| 18 March 2026 Wed -3.8 ° C ( 25.2°F )  Light snow |
Feels Like : -8.9 ° C / 16°F Humidity : % 74 Pressure : 1026 mb Wind Speed : 14 kmph / 8.7 miles from SSW 
Visibility : 8 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 |
|---|---|---|---|---|---|---|---|
| 18 March 2026 Wed |  Sunny |
-10.3 ° C | 2.5 ° C | -3.5 ° C | % 64 | 24.5 km/h | 0% |
| 19 March 2026 Thu |  Overcast |
-1.9 ° C | 4.4 ° C | 1.4 ° C | % 83 | 26.3 km/h | 0% |
| 20 March 2026 Fri |  Heavy rain |
-4.3 ° C | 6.9 ° C | 1.9 ° C | % 95 | 20.9 km/h | 86% |
| 21 March 2026 Sat | Overcast |
0.9 ° C | 5 ° C | 2.6 ° C | % 89 | 20.9 km/h | 0% |
| 22 March 2026 Sun | Heavy rain |
0.3 ° C | 4.1 ° C | 2.7 ° C | % 92 | 38.2 km/h | 79% |
| 23 March 2026 Mon |  Blizzard |
-3.2 ° C | -0.4 ° C | -1 ° C | % 88 | 37.4 km/h | 87% |
| 24 March 2026 Tue |  Partly Cloudy |
-5.3 ° C | -1.4 ° C | -3.2 ° C | % 75 | 17.3 km/h | 0% |
| 25 March 2026 Wed | Partly Cloudy |
-2.1 ° C | 4.5 ° C | 0.9 ° C | % 80 | 17.6 km/h | 0% |
| 26 March 2026 Thu |  Patchy rain nearby |
4.2 ° C | 11.4 ° C | 8.5 ° C | % 77 | 52.9 km/h | 88% |
| 27 March 2026 Fri |  Blowing snow |
-7.1 ° C | -4.8 ° C | -4.5 ° C | % 74 | 30.6 km/h | 71% |
| 28 March 2026 Sat |  Light freezing rain |
-7.4 ° C | 0.2 ° C | -3 ° C | % 69 | 38.9 km/h | 66% |
| 29 March 2026 Sun | Blowing snow |
-3.3 ° C | -1.1 ° C | -2.2 ° C | % 63 | 39.6 km/h | 76% |
| 30 March 2026 Mon | Partly Cloudy |
-3.9 ° C | 0.6 ° C | -1.9 ° C | % 64 | 17.6 km/h | 0% |
| 31 March 2026 Tue | Patchy rain nearby |
-0.6 ° C | 8.2 ° C | 4 ° C | % 73 | 32.4 km/h | 89% |
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