St. Catharines Weather Conditions
Current Temperature Level
St. Catharines Weather Conditions
Current Temperature Level
Feels Like 21°C
Chances of Rain35%
21°35%8 PM
21°46%9 PM
20°88%10 PM20°88%11 PM
20°75%12 AM20°40%1 AM20°36%2 AM19°57%3 AM19°33%4 AM19°32%5 AM
19°15%6 AM
19°29%7 AM18°19%8 AM18°16%9 AM
19°11%10 AM20°9%11 AM21°7%12 PM22°5%1 PM22°4%2 PM23°3%3 PM24°2%4 PM24°2%5 PM24°2%6 PM24°2%Light rain may develop in some areas.
Last Updated: 2026-08-02 19:30 (Local Time)
15°NNE
Direction
21.6km/h
Wind Speed
Gust Speed
10.1m/s
Precipitation
Precipitation
0.02mm
Pressure
1006mb
UV Index
0.1Low
Today
22
°C
91%Monday
21
°C73%Tuesday
20
°C64%Wednesday
22
°C79%Thursday
24
°C81%Friday
23
°C89%Saturday
23
°C87%Sunday
22
°C73%Monday
23
°C74%Tuesday
22
°C73%Patchy rain nearby
Occasional light rain is expected and humidity will be 91%, with winds at 24.5 km/h.28°C / 20°C
Humi.91 %
Prec.21.21 mm
Sunrise
06:08 AM14hrs 29min
Sunset
08:37 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
23 °C
85 %
0
6.5 kmph / NE
Clear
Feels 26 °C
Cover 0 %
Visibility 10 km
1 AM
Patchy rain nearby
23 °C
86 %
0
7.2 kmph / SSE
Patchy rain nearbyFeels 25 °C
Cover 84 %
Visibility 10 km
2 AM
Patchy rain nearby
22 °C
90 %
0
3.6 kmph / SE
Patchy rain nearbyFeels 25 °C
Cover 89 %
Visibility 10 km
3 AM
Clear
22 °C
94 %
0
9.4 kmph / N
ClearFeels 24 °C
Cover 6 %
Visibility 2 km
4 AM
Patchy rain nearby
21 °C
92 %
0
13 kmph / N
Patchy rain nearbyFeels 23 °C
Cover 88 %
Visibility 9 km
5 AM
Clear
21 °C
88 %
0
12.2 kmph / NNE
ClearFeels 22 °C
Cover 0 %
Visibility 10 km
6 AM
Clear
21 °C
87 %
0
11.9 kmph / ENE
ClearFeels 22 °C
Cover 0 %
Visibility 10 km
7 AM
Patchy rain nearby
22 °C
90 %
0
13.7 kmph / ENE
Patchy rain nearbyFeels 23 °C
Cover 86 %
Visibility 9 km
8 AM
Patchy rain nearby
22 °C
90 %
0.1
13 kmph / ENE
Patchy rain nearbyFeels 23 °C
Cover 81 %
Visibility 10 km
9 AM
Light Drizzle
22 °C
91 %
0.8
11.2 kmph / E
Light DrizzleFeels 23 °C
Cover 100 %
Visibility 10 km
10 AM
Patchy rain nearby
22 °C
93 %
0.8
9.7 kmph / ESE
Patchy rain nearbyFeels 24 °C
Cover 65 %
Visibility 10 km
11 AM
Light Rain
22 °C
91 %
1.3
9.7 kmph / E
Light RainFeels 25 °C
Cover 100 %
Visibility 10 km
12 PM
Light Drizzle
22 °C
91 %
2.6
6.5 kmph / E
Light DrizzleFeels 25 °C
Cover 100 %
Visibility 10 km
1 PM
Patchy rain nearby
28 °C
82 %
2.4
0.7 kmph / NNW
Patchy rain nearbyFeels 33 °C
Cover 86 %
Visibility 10 km
2 PM
Rain
22 °C
91 %
1
5.4 kmph / NNW
RainFeels 25 °C
Cover 77 %
Visibility 10 km
3 PM
Patchy rain nearby
22 °C
94 %
2
9.7 kmph / NNW
Patchy rain nearbyFeels 24 °C
Cover 78 %
Visibility 10 km
4 PM
Overcast
21 °C
96 %
3
12.6 kmph / NNW
OvercastFeels 23 °C
Cover 94 %
Visibility 10 km
5 PM
Rain
21 °C
96 %
1.5
19.1 kmph / N
RainFeels 21 °C
Cover 86 %
Visibility 10 km
6 PM
Patchy rain nearby
21 °C
92 %
0.4
24.5 kmph / NNE
Patchy rain nearbyFeels 20 °C
Cover 73 %
Visibility 10 km
7 PM
Patchy rain nearby
21 °C
93 %
0.1
21.6 kmph / NNE
Patchy rain nearbyFeels 21 °C
Cover 100 %
Visibility 7 km
8 PM
Light Drizzle
21 °C
93 %
0
23 kmph / N
Light DrizzleFeels 20 °C
Cover 100 %
Visibility 10 km
9 PM
Rain
20 °C
96 %
0
23.4 kmph / N
RainFeels 19 °C
Cover 81 %
Visibility 10 km
10 PM
Rain
20 °C
95 %
0
22.3 kmph / N
RainFeels 20 °C
Cover 100 %
Visibility 9 km
11 PM
Light Rain
20 °C
94 %
0
23.4 kmph / N
Light RainFeels 19 °C
Cover 100 %
Visibility 10 km
31°19°28°20°24°18°24°17°26°19°28°21°24°20°27°20°26°20°26°20°26°19°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
5
Cloudy
1
Rainy
25
Snowy
0
The monthly weather averages in St. Catharines consist of 5 sunny days, 1 cloudy days, 25 rainy days, and 0 snowy days.
St. Catharines's Locations Weather Conditions
Canada's Hottest Cities - August 2026
1.
Winnipeg, Manitoba
33 °C
Sunny
46%
0.4
28.1 kmph / S
2.
Oakbank, Manitoba
33 °C
Sunny
46%
0.4
28.1 kmph / S
3.
Rosser, Manitoba
32 °C
Sunny
48%
0.4
28.4 kmph / S
4.
Brandon, Manitoba
31 °C
Sunny
45%
1.6
28.8 kmph / NW
5.
Thompson, Manitoba
29 °C
Sunny
37%
1.5
26.3 kmph / S
6.
Regina, Saskatchewan
29 °C
Sunny
29%
2
28.8 kmph / WNW
7.
Estevan, Saskatchewan
28 °C
Sunny
36%
1.9
23.8 kmph / NW
8.
Kenora, Ontario
28 °C
Cloudy
51%
1.3
21.6 kmph / S
9.
Sault Ste. Marie, Ontario
28 °C
Sunny
35%
0.7
9.7 kmph / NW
10.
Medicine Hat, Alberta
28 °C
Sunny
15%
2.4
30.2 kmph / W
Last Updated: 03 Aug 2026, 12:04 AM
City Weather RankingsFAQs About St. Catharines Weather Conditions
1. What is the current temperature in St. Catharines today - 02 August 2026?
1. What is the current temperature in St. Catharines today - 02 August 2026?
The current temperature in St. Catharines is 21°C, with a feels-like temperature of 21°C. Today's forecast shows a high of 28°C and a low of 20°C, giving a 8 degree swing through the day as of 07:30 PM 02 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 07:30 PM 02 August 2026: Condition : Patchy rain nearby Temperature : 21°C Pleasant (Feels like 21°C) Humidity : 93% Wind Speed : 21.6 km/h from NNE (15 degrees), Gust 10.1 m/s UV Index : 0.1 (Low Air Pressure : 1006 mb Cloud Cover : 100% Visibility : 7 km Precipitation : 0.02 mm (88% chance of rain)
3. What is the 10-day weather forecast for St. Catharines from 07:30 PM 02 August 2026?
3. What is the 10-day weather forecast for St. Catharines from 07:30 PM 02 August 2026?
From 07:30 PM 02 August 2026, St. Catharines's 10-day forecast shows this trend: Today (Aug. 2) : Temp. 22°C, Hum. 91% and Patchy rain nearby condition. Monday (Aug. 3) : Temp. 21°C, Hum. 73% and Sunny condition. Tuesday (Aug. 4) : Temp. 20°C, Hum. 64% and Sunny condition. Wednesday (Aug. 5) : Temp. 22°C, Hum. 79% and Sunny condition. Thursday (Aug. 6) : Temp. 24°C, Hum. 81% and Sunny condition. Friday (Aug. 7) : Temp. 23°C, Hum. 89% and Patchy rain nearby condition. Saturday (Aug. 8) : Temp. 23°C, Hum. 87% and Sunny condition. Sunday (Aug. 9) : Temp. 22°C, Hum. 73% and Sunny condition. Monday (Aug. 10) : Temp. 23°C, Hum. 74% and Rain Showers condition. Tuesday (Aug. 11) : 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 07:30 PM 02 August 2026, yes — St. Catharines is currently experiencing rainfall with 0.02 mm of precipitation. This is expected to temporarily improve AQI by washing pollutants out of the atmosphere.
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 5 sunny days, 25 rainy days, 1 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 17°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.
