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June 18th, 2025 :: 8:57 pm EDT   

Local Weather Report for
St Catharines
Ontario, Canada

 Current St Catharines Weather Conditions Updated June 18th at 8:00 pm 
Overcast
Temperature:73°F Dew Point:73°F
Barometer:29.8 inHg Wind:N 6 Mph
Humidity:100.0% Visibility:0M
 
 St Catharines Weather Forecast Summary  
 
Today
Jun 18th
Thursday
Jun 19th
Friday
Jun 20th
Saturday
Jun 21st
Sunday
Jun 22nd
Thundershowers Showers Mostly Cloudy with Showers Cloudy Mostly Sunny
81°F
71°F
60°F
75°F
58°F
79°F
65°F
84°F
70°F
 
 St Catharines Detailed Weather Forecast  
 
Wednesday, June 18th, 2025
Evening Temperature: 68°F
Cloudy with a chance of showers.
Thursday, June 19th, 2025
Overnight Temperature: 69°F
A mix of clear and cloudy skies with showers likely. Windy.
Morning Temperature: 69°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 69°F
Sunny with cloudy periods with a chance of showers. Windy at times.
Evening Temperature: 61°F
Cloudy.
Friday, June 20th, 2025
Overnight Temperature: 61°F
Mostly clear.
Morning Temperature: 74°F
A mix of cloud and sun. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 67°F
A mix of cloud and sun with showers likely. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 65°F
Mostly clear with a chance of showers. Windy at times.
Saturday, June 21st, 2025
Overnight Temperature: 66°F
Cloudy with a slight chance of showers.
Morning Temperature: 75°F
Cloudy. Windy at times.
Afternoon Temperature: 75°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 74°F
Cloudy. Slight chance of a thunderstorm. Windy.
Sunday, June 22nd, 2025
Overnight Temperature: 72°F
Clear with cloudy periods. Slight chance of a thunderstorm. Windy at times.
Morning Temperature: 83°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 80°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 71°F
Clear. Slight chance of a thunderstorm.
Monday, June 23rd, 2025
Overnight Temperature: 73°F
Clear. Chance of a thunderstorm.
Morning Temperature: 85°F
Sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 81°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 72°F
Clear.
Tuesday, June 24th, 2025
Overnight Temperature: 73°F
Clear.
Morning Temperature: 88°F
A mix of cloud and sun with a chance of showers or thundershowers.
Afternoon Temperature: 82°F
Cloudy with a chance of showers or thundershowers.
Evening Temperature: 73°F
Cloudy with a slight chance of showers or thundershowers.
Wednesday, June 25th, 2025
Overnight Temperature: 72°F
A mix of cloudy and clear skies with a chance of showers or thundershowers.
Morning Temperature: 82°F
Cloudy with a chance of showers or thundershowers.
Afternoon Temperature: 80°F
Cloudy with a chance of showers or thundershowers.
Evening Temperature: 71°F
Cloudy. Windy at times.
Thursday, June 26th, 2025
Overnight Temperature: 68°F
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 81°F
Cloudy. Windy at times.
Afternoon Temperature: 77°F
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 69°F
Clear with a chance of showers.





 

  [ Local Weather Report ]
Niagara-on-the-lake, ON 
8:00 PM  73°F
Overcast
 
Thorold, ON 
8:00 PM  73°F
Overcast
 
Lewiston, NY 
7:53 PM  75°F
Mostly Cloudy
 
Youngstown, NY 
8:00 PM  73°F
Overcast
 
Niagara Falls, ON 
7:53 PM  75°F
Mostly Cloudy
 
Niagara Falls, NY 
7:53 PM  75°F
Mostly Cloudy
 
Pelham, ON 
8:00 PM  72°F
 
 
White Pigeon, ON 
 
Welland, ON 
 
Lincoln, ON 
8:00 PM  72°F
 

This WeatherCity Weather Forecast for St Catharines, Ontario, Canada is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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