Weather St. Catharines, ON 16°C : °C Partly cloudy : 7km/h SO : 100.5 kPa : 14°C : 88% : 14°C / : 27°C This evening 24°C Variable cloudiness Tonight 20°C Variable cloudiness Saturday morning 20°C Variable cloudiness 27°C : 40% 20°C : 70% 14°C : 30% 16°C : 30% Check out what we've been playing!