St Catharines Weather Conditions
Current Temperature Level
St Catharines Weather Conditions
Current Temperature Level
Feels Like 28°C
Chances of Rain1%
27°1%7 PM26°2%8 PM23°7%9 PM
21°8%10 PM21°8%11 PM20°7%12 AM20°5%1 AM19°7%2 AM19°7%3 AM18°8%4 AM17°8%5 AM17°8%6 AM17°8%7 AM18°9%8 AM20°7%9 AM21°6%10 AM22°5%11 AM23°4%12 PM24°4%1 PM24°4%2 PM24°4%3 PM25°5%4 PM25°5%5 PM25°5%It is likely to be sunny; sun protection may help.
Last Updated: 2026-08-04 18:00 (Local Time)
207°SSW
Direction
6.5km/h
Wind Speed
Gust Speed
2.8m/s
Precipitation
Precipitation
0mm
Pressure
1017mb
UV Index
1.4Low
Today
22
°C
73%Wednesday
22
°C71%Thursday
23
°C80%Friday
22
°C85%Saturday
23
°C82%Sunday
22
°C90%Monday
23
°C85%Tuesday
21
°C88%Wednesday
22
°C74%Thursday
22
°C73%Sunny
Clear Sky with temperature at 22 °C and humidity will be at 73% with 10.1 km/h winds.29°C / 15°C
Humi.73 %
Prec.0 mm
Sunrise
06:10 AM14hrs 25min
Sunset
08:35 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
19 °C
81 %
0
6.5 kmph / W
Clear
Feels 19 °C
Cover 0 %
Visibility 10 km
1 AM
Clear
18 °C
83 %
0
5.8 kmph / W
ClearFeels 19 °C
Cover 0 %
Visibility 10 km
2 AM
Clear
18 °C
87 %
0
5 kmph / W
ClearFeels 18 °C
Cover 0 %
Visibility 10 km
3 AM
Clear
17 °C
88 %
0
5.4 kmph / SW
ClearFeels 18 °C
Cover 0 %
Visibility 10 km
4 AM
Clear
17 °C
87 %
0
7.9 kmph / SSW
ClearFeels 17 °C
Cover 3 %
Visibility 10 km
5 AM
Clear
17 °C
84 %
0
6.1 kmph / SW
ClearFeels 17 °C
Cover 0 %
Visibility 10 km
6 AM
Clear
16 °C
87 %
0
7.6 kmph / SSW
ClearFeels 16 °C
Cover 3 %
Visibility 10 km
7 AM
Sunny
15 °C
82 %
0.2
8.6 kmph / SSW
SunnyFeels 14 °C
Cover 0 %
Visibility 10 km
8 AM
Cloudy
17 °C
83 %
0.8
8.3 kmph / SW
CloudyFeels 17 °C
Cover 70 %
Visibility 10 km
9 AM
Cloudy
19 °C
80 %
2
9.7 kmph / WSW
CloudyFeels 19 °C
Cover 76 %
Visibility 10 km
10 AM
Partly Cloudy
21 °C
83 %
3.8
10.1 kmph / WSW
Partly CloudyFeels 22 °C
Cover 26 %
Visibility 10 km
11 AM
Sunny
23 °C
78 %
5.8
9.7 kmph / W
SunnyFeels 25 °C
Cover 9 %
Visibility 10 km
12 PM
Sunny
26 °C
68 %
7.5
9.4 kmph / W
SunnyFeels 27 °C
Cover 2 %
Visibility 10 km
1 PM
Sunny
27 °C
64 %
8.3
7.2 kmph / W
SunnyFeels 29 °C
Cover 2 %
Visibility 10 km
2 PM
Sunny
29 °C
56 %
8.1
5.4 kmph / W
SunnyFeels 30 °C
Cover 3 %
Visibility 10 km
3 PM
Sunny
28 °C
54 %
6.8
3.2 kmph / W
SunnyFeels 29 °C
Cover 1 %
Visibility 10 km
4 PM
Sunny
28 °C
55 %
4.9
4 kmph / SSW
SunnyFeels 28 °C
Cover 0 %
Visibility 10 km
5 PM
Sunny
27 °C
58 %
3
6.5 kmph / SSW
SunnyFeels 28 °C
Cover 0 %
Visibility 10 km
6 PM
Sunny
27 °C
48 %
1.4
6.5 kmph / SSW
SunnyFeels 28 °C
Cover 0 %
Visibility 10 km
7 PM
Sunny
26 °C
54 %
0.5
5.8 kmph / SW
SunnyFeels 27 °C
Cover 0 %
Visibility 10 km
8 PM
Sunny
23 °C
74 %
0
5.4 kmph / SW
SunnyFeels 25 °C
Cover 1 %
Visibility 10 km
9 PM
Clear
21 °C
77 %
0
4.3 kmph / SSW
ClearFeels 23 °C
Cover 2 %
Visibility 10 km
10 PM
Clear
21 °C
77 %
0
4.7 kmph / S
ClearFeels 22 °C
Cover 0 %
Visibility 10 km
11 PM
Clear
20 °C
75 %
0
4.7 kmph / SSE
ClearFeels 21 °C
Cover 0 %
Visibility 10 km
31°19°28°19°28°17°29°16°25°18°29°21°24°20°26°20°29°21°25°19°21°17°26°19°25°19°
25°19°25°19°26°19°26°19°25°19°
25°18°25°19°25°19°24°18°24°18°25°18°25°19°24°18°24°18°24°18°25°18°24°18°24°18°AugustWeather Overview
No. of days:
Sunny
9
Cloudy
0
Rainy
22
Snowy
0
The monthly weather averages in St Catharines consist of 9 sunny days, 0 cloudy days, 22 rainy days, and 0 snowy days.
St Catharines's Locations Weather Conditions
Canada's Hottest Cities - August 2026
1.
Abbotsford, British Columbia
32 °C
Smoky haze
23%
2.7
7.9 kmph / W
2.
Kent, British Columbia
32 °C
Smoky haze
24%
2.1
9 kmph / WSW
3.
Agassiz, British Columbia
32 °C
Smoky haze
27%
2.2
8.3 kmph / WSW
4.
Chilliwack, British Columbia
32 °C
Smoky haze
27%
2.2
8.3 kmph / WSW
5.
Maple Ridge, British Columbia
32 °C
Sunny
32%
3
9.7 kmph / SW
6.
Port Moody, British Columbia
31 °C
Sunny
36%
3
11.2 kmph / SW
7.
Langley, British Columbia
31 °C
Sunny
32%
3.5
10.8 kmph / WSW
8.
Langley Township, British Columbia
31 °C
Sunny
32%
3.5
10.8 kmph / WSW
9.
Kamloops, British Columbia
31 °C
Sunny
23%
1.1
3.6 kmph / SW
10.
Dorval, Quebec
31 °C
Sunny
42%
2.2
16.9 kmph / WSW
Last Updated: 04 Aug 2026, 10:18 PM
City Weather RankingsFAQs About St Catharines Weather Conditions
1. What is the current temperature in St Catharines today - 04 August 2026?
1. What is the current temperature in St Catharines today - 04 August 2026?
The current temperature in St Catharines is 27°C, with a feels-like temperature of 28°C. Today's forecast shows a high of 29°C and a low of 15°C, giving a 14 degree swing through the day as of 06:00 PM 04 August 2026.
2. What are the current weather parameters in St Catharines today?
2. What are the current weather parameters in St Catharines today?
Here is a complete overview of St Catharines's current weather conditions as of 06:00 PM 04 August 2026: Condition : Sunny Temperature : 27°C Pleasant (Feels like 28°C) Humidity : 48% Wind Speed : 6.5 km/h from SSW (207 degrees), Gust 2.9 m/s UV Index : 1.4 (Low Air Pressure : 1017 mb Cloud Cover : 0% Visibility : 10 km Precipitation : 0 mm (7% chance of rain)
3. What is the 10-day weather forecast for St Catharines from 06:00 PM 04 August 2026?
3. What is the 10-day weather forecast for St Catharines from 06:00 PM 04 August 2026?
From 06:00 PM 04 August 2026, St Catharines's 10-day forecast shows this trend: Today (Aug. 4) : Temp. 22°C, Hum. 73% and Sunny condition. Wednesday (Aug. 5) : Temp. 22°C, Hum. 71% and Sunny condition. Thursday (Aug. 6) : Temp. 23°C, Hum. 80% and Partly Cloudy condition. Friday (Aug. 7) : Temp. 22°C, Hum. 85% and Sunny condition. Saturday (Aug. 8) : Temp. 23°C, Hum. 82% and Sunny condition. Sunday (Aug. 9) : Temp. 22°C, Hum. 90% and Patchy rain nearby condition. Monday (Aug. 10) : Temp. 23°C, Hum. 85% and Sunny condition. Tuesday (Aug. 11) : Temp. 21°C, Hum. 88% and Rain Shower condition. Wednesday (Aug. 12) : Temp. 22°C, Hum. 74% and Rain Showers condition. Thursday (Aug. 13) : Temp. 22°C, Hum. 73% and Rain Showers condition.
4. Will it rain in St Catharines today?
4. Will it rain in St Catharines today?
As of 06:00 PM 04 August 2026, there is a 1% chance of rainfall in St Catharines later today around 2026-08-04 18:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.
5. What is the monthly weather forecast for St Catharines in August 2026?
5. What is the monthly weather forecast for St Catharines in August 2026?
August 2026 in St Catharines is forecast to have 9 sunny days, 22 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 16°C to highs of 31°C.
6. How does the weather in St Catharines affect air quality?
6. How does the weather in St Catharines affect air quality?
Weather directly impacts air quality in St Catharines. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.
