Thursday
A mix of sun and cloud
High:
12°C
A mix of sun and cloud. High 12.
St. Catharines, Ontario Weather - Extended Forecast
Thursday Night
Cloudy periods
Overnight low:
5°C
Cloudy periods. Low plus 5.
Friday
A mix of sun and cloud
High:
13°C
Friday Night
Cloudy periods
Overnight low:
7°C
Saturday
A mix of sun and cloud
High:
17°C
Saturday Night
Chance of showers
Overnight low:
8°C
Sunday
A mix of sun and cloud
High:
15°C