Monthly Historical AveragesSt. Catharines, ON
Average Temperature
High
19°
Feels 19
Low
9°
Feels 8
Average Precipitation
12 Days
75.5mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, May 2, 2026
Day
8°Feels 7
Wind
17 km/h W
Gust
32 km/h
Humidity
46%
P.O.P
40%
Rain
<1 mm
Night
1°Feels -3
Wind
14 km/h W
Gust
21 km/h
Humidity
87%
P.O.P
40%
Rain
<1 mm
Historical AveragesMay 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity