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

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Updated: @ 19/01/2026 16:30 - next update at 00:00  
Summary / Temperature Wind Rain Outlook
Dusk Dusk
Currently: 66.4, Max: 67.6, Min: 39.5 66.4°C
Colder 1.2°C than last hour.

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Feels like: 66.4°C

24-hr difference
0.8°CWarmer 0.8°C than yesterday at this time.
  Today Yesterday
High: 67.6°C
14:35 		66.9°C
14:49
Low: 39.5°C
07:19 		42.8°C
07:27
Wind from NW NW
0.1
Gust:
 0 km/h
0 Bft - Calm
Today: 10.4 km/h 16:05
Gust Month: 29.0 km/h January 3
Rain Today: 0 mm
Rain Rate (/hr): 0 mm
Rain Yesterday: 0 mm
Storm Rain: 0 mm
This Month: 3.48 mm
Season Total: 13.2 mm
7 rain days in January.
Tue, 20 Jan
Chance of flurries (40%)
Chance of flurries
Humidity & Barometer Almanac Moon
Humidity: 41 % Increased 4.0% since last hour.
Dew Point: 42°C Increased 1.6°C since last hour.
Barometer: 30.01 hPa  
Baro Trend: Steady
Sunrise: 07:18
Sunset: 17:18
Moonrise: 08:38
Moonset: 18:17
Waxing Crescent
Waxing Crescent, Moon at 1 days in cycle
1%
Illuminated
UV Index Forecast UV Index Forecast
19/01/2026
2.2     Low 
20/01/2026
2.4     Low 
 EC Weather Forecast  - Outlook: Tonight & Tue, 20 Jan
Tonight
Flurries
Flurries
Min: -13°C
 EC forecast: Flurries ending near midnight then partly cloudy with 40 percent chance of flurries. Blowing snow early this evening. Local blowing snow this evening. Wind west 40 km/h gusting to 70. Low minus 13. Wind chill minus 16 this evening and minus 23 overnight.
WXSIM forecast: Fair to partly cloudy. High 66°. Wind west-northwest around 3 mph.
Davis VP+ forecast: Increasing clouds with little temp change, precipitation possible within 24 to 48 hrs.
 
Tue, 20 Jan
Chance of flurries (40%)
Chance of flurries
Max: -10°C
 EC forecast: A mix of sun and cloud with 40 percent chance of flurries. Wind southwest 30 km/h gusting to 50. High minus 10. Wind chill near minus 23. UV index 1 or low.
WXSIM forecast: Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Low 42°. Wind northwest near calm in the evening, becoming northeast after midnight.