St Catharines Weather Conditions
Current Temperature Level
23 °C
24 AQI
Air quality index is: Good
Last Updated: 2025-08-24 14:15 (Local Time)
MapSt Catharines
St Catharines Weather Parameters
8 km/h
2 m/s
310° NW
75 %
24 km
0 mm
1010 mb
UV Index7
Suggestions for
TodaySt Catharines24 Aug.
Umbrella• Optional
Clothing• Layering Must
Driving• Enjoy Driving
Sunscreen• ApplyTrending in Canada
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St Catharines 10-Days Weather Forecast
Today
21°C
78 %Monday
18°C72 %Tuesday
17°C61 %Wednesday
19°C53 %Thursday
19°C62 %Friday
18°C65 %Saturday
20°C58 %Sunday
22°C62 %Monday
20°C88 %Tuesday
20°C70 %Partly Cloudy
Periodic cloud cover with temperature at 21 °C. Humidity will be at 78%, and winds will be at 29.2 km/h.24°C / 18°C
Humi.78 %
Prec.0 mm
Sunrise
06:32 AM13hrs 33min
Sunset
08:05 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Overcast
22 °C
84 %
0
19.8 kmph / SW
Overcast 
Feels 21.7 °C
Cover 93 %
Visibility 9 km
1 AM
Partly Cloudy
22 °C
89 %
0
19.4 kmph / SW
Partly Cloudy Feels 21.8 °C
Cover 25 %
Visibility 9 km
2 AM
Thundery outbreaks in nearby
22 °C
88 %
0
19.8 kmph / SW
Thundery outbreaks in nearbyFeels 21.8 °C
Cover 44 %
Visibility 10 km
3 AM
Partly Cloudy
22 °C
90 %
0
20.2 kmph / WSW
Partly Cloudy Feels 21.7 °C
Cover 34 %
Visibility 10 km
4 AM
Thundery outbreaks in nearby
20 °C
93 %
0
19.4 kmph / WSW
Thundery outbreaks in nearbyFeels 20.2 °C
Cover 35 %
Visibility 10 km
5 AM
Clear
19 °C
94 %
0
14.8 kmph / W
Clear Feels 19.2 °C
Cover 8 %
Visibility 10 km
6 AM
Clear
19 °C
94 %
0
11.2 kmph / WNW
Clear Feels 18.5 °C
Cover 0 %
Visibility 10 km
7 AM
Mist
19 °C
96 %
0
11.5 kmph / WNW
MistFeels 18.7 °C
Cover 8 %
Visibility 10 km
8 AM
Partly Cloudy
20 °C
92 %
0.4
12.2 kmph / WNW
Partly Cloudy Feels 19.5 °C
Cover 26 %
Visibility 10 km
9 AM
Partly Cloudy
20 °C
87 %
1.2
14 kmph / WNW
Partly Cloudy Feels 20.3 °C
Cover 39 %
Visibility 10 km
10 AM
Partly Cloudy
21 °C
82 %
3
14.8 kmph / WNW
Partly Cloudy Feels 21.2 °C
Cover 41 %
Visibility 10 km
11 AM
Partly Cloudy
22 °C
76 %
4.8
14 kmph / WNW
Partly Cloudy Feels 24.2 °C
Cover 39 %
Visibility 10 km
12 PM
Partly Cloudy
23 °C
69 %
6.4
12.2 kmph / WNW
Partly Cloudy Feels 24.7 °C
Cover 30 %
Visibility 10 km
1 PM
Partly Cloudy
23 °C
64 %
7.2
10.8 kmph / NW
Partly Cloudy Feels 25.1 °C
Cover 46 %
Visibility 10 km
2 PM
Partly cloudy
23 °C
65 %
7
7.6 kmph / NW
Partly cloudyFeels 25.2 °C
Cover 75 %
Visibility 24 km
3 PM
Cloudy
24 °C
59 %
5.4
4 kmph / WSW
Cloudy Feels 25.2 °C
Cover 70 %
Visibility 10 km
4 PM
Cloudy
24 °C
56 %
2.4
12.6 kmph / SW
Cloudy Feels 25.2 °C
Cover 69 %
Visibility 10 km
5 PM
Cloudy
24 °C
56 %
1.5
25.9 kmph / SW
Cloudy Feels 25.1 °C
Cover 66 %
Visibility 10 km
6 PM
Partly Cloudy
23 °C
60 %
0.9
29.2 kmph / SW
Partly Cloudy Feels 25 °C
Cover 61 %
Visibility 10 km
7 PM
Partly Cloudy
22 °C
63 %
0.2
26.6 kmph / SW
Partly Cloudy Feels 24.7 °C
Cover 47 %
Visibility 10 km
8 PM
Partly Cloudy
21 °C
67 %
0
23.8 kmph / WSW
Partly Cloudy Feels 21.3 °C
Cover 35 %
Visibility 10 km
9 PM
Clear
20 °C
74 %
0
22.7 kmph / W
Clear Feels 20.2 °C
Cover 20 %
Visibility 10 km
10 PM
Clear
19 °C
83 %
0
17.6 kmph / W
Clear Feels 19.2 °C
Cover 13 %
Visibility 10 km
11 PM
Partly Cloudy
19 °C
88 %
0
15.8 kmph / W
Partly Cloudy Feels 18.7 °C
Cover 39 %
Visibility 10 km
Today
21°C78 %Monday
18°C72 %Tuesday
17°C61 %Wednesday
19°C53 %Thursday
19°C62 %Friday
18°C65 %Saturday
20°C58 %Sunday
22°C62 %Monday
20°C88 %Tuesday
20°C70 %Temp24 °C
ConditionCloudy
Humidity59 %
Feels25.2 °C
Cover70 %
Visibility10 km
Wind Speed & Dir.4 kmph / WSW
UV5.4
St Catharines 30-Days (August 2025) Weather Forecast
Sun.
Mon.
Tue.
Wed.
Thu.
Fri.
Sat.
1Fri.
26°14 °C
2Sat.
26°15 °C
3Sun.
30°14 °C
4Mon.
29°16 °C
5Tue.
31°16 °C
6Wed.
31°19 °C
7Thu.
31°19 °C
8Fri.
31°18 °C
9Sat.
33°20 °C
10Sun.
35°20 °C
11Mon.
34°22 °C
12Tue.
32°22 °C
13Wed.
33°22 °C
14Thu.
30°19 °C
15Fri.
32°16 °C
16Sat.
32°18 °C
17Sun.
25°18 °C
18Mon.
25°15 °C
19Tue.
31°13 °C
20Wed.
22°18 °C
21Thu.
26°18 °C
22Fri.
29°15 °C
23Sat.
27°16 °C
24Today
24°19 °C
25Mon.
22°16 °C
26Tue.
20°15 °C
27Wed.
22°13 °C
28Thu.
23°15 °C
29Fri.
19°13 °C
30Sat.
21°15 °C
31Sun.
23°15 °C
AugustWeather Overview
No. of days:
Sunny
16
Cloudy
5
Rainy
8
Snowy
0
The monthly weather averages in St Catharines consist of 16 sunny days, 5 cloudy days, 8 rainy days, and 0 snowy days.
St Catharines's Locations Weather Conditions
Canada's Hottest Cities - August 2025
1.
Bathurst, Canada
Partly Cloudy
40%
4.3
19.8 kmph / SW
2.
Miramichi, Canada
Sunny
40%
5.7
25.9 kmph / SSW
3.
North Cowichan, Canada
Sunny
39%
4.8
7.2 kmph / N
4.
Nanaimo, Canada
Sunny
39%
4.8
7.2 kmph / N
5.
North Vancouver, Canada
Sunny
39%
4.8
7.6 kmph / W
6.
Richmond, Canada
Sunny
39%
4.8
7.6 kmph / W
7.
Vancouver, Canada
Sunny
39%
4.8
7.6 kmph / W
8.
Moncton, Canada
Partly cloudy
28%
5.7
26.6 kmph / SW
9.
Aylesford, Canada
Overcast
26%
5.9
19.1 kmph / SW
10.
Kentville, Canada
Sunny
26%
5.9
19.1 kmph / SW
Last Updated: 24 Aug 2025, 06:26 PM
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