St Catharines Weather Conditions
Current Temperature Level
9 °C
14 AQI
Air quality index is: Good
Last Updated: 2025-05-19 04:30 (Local Time)
MapSt Catharines
St Catharines Weather Parameters
17 km/h
7 m/s
326° NW
0 %
10 km
0 mm
1014 mb
UV Index0
Suggestions for
TodaySt Catharines19 May
Hydration• Stay Hydrated
Clothing• More Layered
Driving• Enjoy Driving
Sunscreen• Not requiredTrending in Canada
Two Worlds, One Breath: World Asthma Day 2025 and the Link Between Air Pollution and Asthma
St Catharines 10-Days Weather Forecast
St Catharines 30-Days (May 2025) Weather Forecast
1Thu.
23°5 °C
2Fri.
21°12 °C
3Sat.
10°6 °C
4Sun.
13°7 °C
5Mon.
20°11 °C
6Tue.
20°13 °C
7Wed.
20°11 °C
8Thu.
10°4 °C
9Fri.
15°2 °C
10Sat.
21°3 °C
11Sun.
19°5 °C
12Mon.
28°6 °C
13Tue.
25°14 °C
14Wed.
24°16 °C
15Thu.
27°15 °C
16Fri.
27°14 °C
17Sat.
24°13 °C
18Sun.
16°10 °C
19Today
17°6 °C
20Tue.
13°2 °C
21Wed.
13°5 °C
22Thu.
13°8 °C
23Fri.
13°8 °C
24Sat.
16°6 °C
25Sun.
17°8 °C
26Mon.
11°9 °C
27Tue.
16°9 °C
28Wed.
19°9 °C
29Thu.
21°12 °C
30Fri.
22°14 °C
31Sat.
24°14 °C
MayWeather Overview
No. of days:
Sunny
5
Cloudy
5
Rainy
19
Snowy
0
The monthly weather averages in St Catharines consist of 5 sunny days, 5 cloudy days, 19 rainy days, and snowy days.
Canada's Most Hottest Cities - May 2025
1.
Aylesford, Canada
Overcast
82%
0.7
6.8 kmph / SSW
2.
Kentville, Canada
Mist
90%
0.7
7.2 kmph / SSW
3.
Salt River, Canada
Partly Cloudy
43%
0.1
13 kmph / SE
4.
Joussard, Canada
Thundery outbreaks in nearby
67%
0
11.5 kmph / ESE
5.
Wellington, Canada
Fog
96%
0.2
20.5 kmph / ENE
6.
Queens, Canada
Fog
94%
0.3
7.2 kmph / SSW
7.
Fort Chipewyan, Canada
Mist
54%
0.1
11.9 kmph / SE
8.
St Catharines, Canada
Overcast
71%
0.4
17.6 kmph / NNW
9.
St. Catharines, Canada
Overcast
71%
0.4
17.6 kmph / NNW
10.
Chard, Canada
Overcast
46%
0
10.4 kmph / SSE
Last Updated: 19 May 2025, 02:22 PM
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