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No watches or warnings in effect for St. Catharines, ON.

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Updated: @ 07/06/2026 17:29 - next update at 17:30  
Summary / Temperature Wind Rain Outlook
Day time Day time
Currently: 25.6°C, Max: 26.1°C, Min: 11.4°C 25.6°C
 

Comfortable

Feels like: 26.3°C

24-hr difference
3.2°CWarmer 3.2°C than yesterday at this time.
  Today Yesterday
High: 26.1°C
15:16 		24.6°C
13:36
Low: 11.4°C
05:57 		14.3°C
06:15
Wind from SSW SSW
5
Gust:
 4.8 km/h
1 Bft - Light Breeze
Today: 20.9 km/h 15:19
Gust Month: 35.3 km/h July 1
Rain Today: 0 mm
Rain Rate (/hr): 0 mm
Rain Yesterday: 0 mm
Storm Rain: 0 mm
This Month: 2.4 mm
Season Total: 2.4 mm
1 rain day in July.
Tue, 7 Jul
Chance of showers (30%)
Chance of showers
Humidity & Barometer Almanac Moon
Humidity: 55 % Decreased 1.0% since last hour.
Dew Point: 15.8°C Decreased 0.2°C since last hour.
Barometer: 1020.5 mb Falling 0.5 mb/hr
Baro Trend: Steady
Sunrise: 05:40
Sunset: 21:17
Moonrise: 00:09
Moonset: 12:28
Waning Gibbous
Waning Gibbous, Moon at 21 days in cycle
60%
Illuminated
UV Index Solar Radiation
   0.7     Low 
High: 4.9 @ 13:38
70 W/m2 (0 %)
High: 916 @  12:54
 EC Weather Forecast  - Outlook: Tonight & Tue, 7 Jul
Tonight
Chance of showers (40%)
Chance of showers
Min: 19°C
 EC forecast: Partly cloudy. 40 percent chance of showers early this evening with risk of a thunderstorm. Wind southeast 20 km/h becoming light late this evening. Low 19.
Davis VP+ forecast: Increasing clouds with little temp change, precipitation possible within 24 to 48 hrs.
 
Tue, 7 Jul
Chance of showers (30%)
Chance of showers
Max: 26°C
 EC forecast: A mix of sun and cloud. 30 percent chance of showers late in the afternoon. Wind becoming northeast 20 km/h late in the morning. High 26. Humidex 34. UV index 8 or very high.