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

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Updated: @ 23/05/2025 11:20 - next update at 00:00  
Summary / Temperature Wind Rain Outlook
Sunny, Dry Sunny, Dry
Currently: 64.5, Max: 64.5, Min: 48.8 64.5°C
Warmer 2.5°C than last hour.

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Feels like: 64.5°C

24-hr difference
-6.3°CColder 6.3°C than yesterday at this time.
  Today Yesterday
High: 64.5°C
11:16 		77.9°C
16:45
Low: 48.8°C
06:21 		50.1°C
06:04
Wind from ENE ENE
4.1
Gust:
 3 km/h
1 Bft - Light Breeze
Today: 10.4 km/h 10:00
Gust Month: 20.0 km/h May 3
Rain Today: 0 mm
Rain Rate (/hr): 0 mm
Rain Yesterday: 0 mm
Storm Rain: 0 mm
This Month: 0.06 mm
Season Total: 17.68 mm
1 rain day in May.
Tonight
Chance of showers (40%)
Chance of showers
Humidity & Barometer Almanac Moon
Humidity: 59 % Decreased 7.0% since last hour.
Dew Point: 49.8°C Decreased 0.6°C since last hour.
Barometer: 29.996 hPa  
Baro Trend: Steady
Sunrise: 05:53
Sunset: 20:16
Moonrise: 03:23
Moonset: 16:27
Waning Crescent
Waning Crescent, Moon at 25 days in cycle
16%
Illuminated
UV Index Forecast UV Index Forecast
23/05/2025
7.9     High 
24/05/2025
7.8     High 
 EC Weather Forecast  - Outlook: Today & Tonight
Today
Chance of showers (40%)
Chance of showers
Max: 12°C
 EC forecast: Cloudy with 40 percent chance of showers. Wind west 30 km/h gusting to 50. High 12. UV index 5 or moderate.
WXSIM forecast: Sunny. High 78°. UV index up to 8. Wind west-southwest around 6 mph, gusting to 18 mph, in the morning, becoming west-northwest in the afternoon.
Davis VP+ forecast: Increasing clouds with little temp change.
 
Tonight
Chance of showers (40%)
Chance of showers
Min: 8°C
 EC forecast: Cloudy with 40 percent chance of showers. Wind west 30 km/h gusting to 50. Low 8.
WXSIM forecast: Mostly clear in the evening, becoming clear after midnight. Low 46°. Wind west-northwest near calm.