St. Catharines, Canada – Weather Tomorrow July 15
Wednesday, July 15
Night
02:00am – 08:00am
26°
27°
79°
81°
partly cloudy
W 24 km/h
15 mph
Morning
08:00am – 02:00pm
27°
33°
81°
91°
mostly clear
WNW 12 km/h
8 mph
Afternoon
02:00pm – 08:00pm
30°
33°
86°
91°
partly cloudy
W 19 km/h
12 mph
Evening
08:00pm – 02:00am
25°
28°
77°
82°
cloudy
WNW 19 km/h
12 mph
Weather Tomorrow – Summary
Tomorrow, on Wednesday morning mostly clear, during the day partly cloudy, evening cloudy. Temperature: 25° to 33°C77° to 91°F. Wind: 12 to 24 km/h8 to 15 mph.
Data source: MET Norway — Last updated: Jul 14, 2026, 08:05 UTC