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

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Updated: @ 07/05/2026 13:48 - next update at 13:49  
Summary / Temperature Wind Rain Outlook
Day time Day time
Currently: 24.4°C, Max: 24.6°C, Min: 14.3°C 24.4°C
Warmer 0.3°C than last hour.

Comfortable

Feels like: 25.5°C

24-hr difference
-6.8°CColder 6.8°C than yesterday at this time.
  Today Yesterday
High: 24.6°C
13:36
33°C
14:10
Low: 14.3°C
06:15
18.1°C
00:28
 Wind from NNW NNW
4.4
Gust:
3.2 km/h
1 Bft - Light Air
Today: 22.5 km/h 11:11
Gust Month: 35.3 km/h July 1
Rain Today: 0 mm
Rain Rate (/hr): 0 mm
Rain Yesterday: 2.4 mm
Storm Rain: 0 mm
This Month: 2.4 mm
Season Total: 2.4 mm
1 rain day in July.
Tonight
Chance of showers (40%)
Chance of showers
Humidity & Barometer Almanac Moon
Humidity: 59 % Increased 1.0% since last hour.
Dew Point: 15.9°C Increased 0.6°C since last hour.
Barometer: 1014.2 mb Rising 0.3  mb/hr
Baro Trend: Steady
Sunrise: 05:39
Sunset: 21:18
Moonset: 11:19
Moonrise: 23:52
Waning Gibbous
Waning Gibbous, Moon at 20 days in cycle
72%
Illuminated
UV Index Solar Radiation
   2.6     Low 
High: 6.3 @ 13:07
1148 W/m2 (0 %)
High: 1227 @  13:36
 EC Weather Forecast  - Outlook: Today & Tonight
Today
Chance of showers (40%)
Chance of showers

Max: 24°C
EC forecast: Mainly cloudy with 40 percent chance of showers. Risk of a thunderstorm this afternoon. Wind becoming northeast 20 km/h this afternoon. High 24. Humidex 31. UV index 9 or very high.
Davis VP+ forecast: Increasing clouds with little temp change.
 
Tonight
Chance of showers (40%)
Chance of showers

Min: 20°C
EC forecast: Mainly cloudy with 40 percent chance of showers. Risk of a thunderstorm early this evening. Wind northeast 20 km/h becoming light early this evening. Low 20.