Current Conditions
Temp:
9°C
Wind: From the NW at 3 km/h
Pressure: 101.4 kPa
Humidity: 75%
Observed at: 12:00 am EDT
St. Catharines, Ontario Weather
Overnight
Clear
Overnight low:
6°C
Clear. Low 6.
Tuesday
Sunny
High:
20°C
Sunny. High 20 except 13 near Lake Ontario. UV index 8 or very high.
Tuesday Night
A few showers
Overnight low:
10°C
Mainly cloudy. A few showers beginning in the evening and ending after midnight. Risk of a thunderstorm late in the evening and after midnight. Low 10.