St. Catharines, Ontario Weather

Current Conditions

Temp:
20°C

Wind: From the SSW at 4 km/h

Pressure: 101.7 kPa

Humidity: 96%

Observed at: 6:00 am EDT

Today

Mainly sunny

High:
30°C

Sunny. Becoming a mix of sun and cloud near noon. Wind becoming southwest 30 km/h gusting to 50 late this morning. High 30. Humidex 40. UV index 9 or very high.

Tonight

Chance of showers

Overnight low:
21°C

Partly cloudy with 40 percent chance of showers. Risk of a thunderstorm this evening and after midnight. Wind southwest 20 km/h becoming light this evening. Low 21.