St Catharines Weather Conditions
Current Temperature Level
St Catharines Weather Conditions
Current Temperature Level
Feels Like 16°C
Chances of Rain4%
20°4%6 PM
19°8%7 PM18°9%8 PM
17°16%9 PM
17°14%10 PM
17°13%11 PM17°25%12 AM
16°7%1 AM15°5%2 AM15°6%3 AM14°6%4 AM14°5%5 AM13°6%6 AM13°5%7 AM13°4%8 AM12°5%9 AM13°4%10 AM13°4%11 AM14°3%12 PM14°3%1 PM15°11%2 PM15°9%3 PM15°2%4 PM16°2%It is likely to be sunny; sun protection may help.
Last Updated: 2026-10-04 17:00 (Local Time)
224°SW
Direction
20.2km/h
Wind Speed
Gust Speed
7.1m/s
Precipitation
Precipitation
0mm
Pressure
1015mb
UV Index
0.9Low
Trending in Canada
What Is PM2.5? And Why Does That Number Matter?
Today
16
°C
67%Monday
14
°C57%Tuesday
11
°C56%Wednesday
17
°C66%Thursday
16
°C71%Friday
15
°C61%Saturday
14
°C65%Sunday
18
°C65%Monday
13
°C71%Tuesday
13
°C75%Overcast
Fully overcast skies with a high of 16 °C. Humidity will be 67%, and winds at 27.4 km/h.20°C / 12°C
Humi.67 %
Prec.0.18 mm
Sunrise
07:17 AM11hrs 36min
Sunset
06:53 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
12 °C
61 %
0
17.6 kmph / ESE
Clear
Feels 9 °C
Cover 8 %
Visibility 10 km
1 AM
Clear
12 °C
61 %
0
16.6 kmph / ESE
ClearFeels 9 °C
Cover 24 %
Visibility 10 km
2 AM
Cloudy
12 °C
63 %
0
16.6 kmph / ESE
CloudyFeels 9 °C
Cover 79 %
Visibility 10 km
3 AM
Overcast
12 °C
64 %
0
16.9 kmph / ESE
OvercastFeels 9 °C
Cover 100 %
Visibility 10 km
4 AM
Overcast
12 °C
63 %
0
14 kmph / SE
OvercastFeels 9 °C
Cover 93 %
Visibility 10 km
5 AM
Cloudy
12 °C
67 %
0
11.9 kmph / SSE
CloudyFeels 10 °C
Cover 68 %
Visibility 10 km
6 AM
Overcast
12 °C
70 %
0
10.1 kmph / SSW
OvercastFeels 10 °C
Cover 98 %
Visibility 10 km
7 AM
Overcast
13 °C
75 %
0
12.2 kmph / SSW
OvercastFeels 10 °C
Cover 100 %
Visibility 10 km
8 AM
Overcast
13 °C
78 %
0
13 kmph / SSW
OvercastFeels 11 °C
Cover 100 %
Visibility 10 km
9 AM
Sunny
15 °C
77 %
0.5
14 kmph / SW
SunnyFeels 12 °C
Cover 4 %
Visibility 10 km
10 AM
Sunny
16 °C
75 %
1.3
17.6 kmph / SW
SunnyFeels 13 °C
Cover 7 %
Visibility 10 km
11 AM
Overcast
18 °C
69 %
2.5
18 kmph / SW
OvercastFeels 15 °C
Cover 96 %
Visibility 10 km
12 PM
Patchy rain nearby
18 °C
67 %
3.1
22.7 kmph / S
Patchy rain nearbyFeels 14 °C
Cover 100 %
Visibility 10 km
1 PM
Partly Cloudy
19 °C
65 %
2.9
23 kmph / SSW
Partly CloudyFeels 15 °C
Cover 58 %
Visibility 10 km
2 PM
Overcast
19 °C
61 %
3.4
25.2 kmph / SW
OvercastFeels 15 °C
Cover 100 %
Visibility 10 km
3 PM
Partly Cloudy
19 °C
61 %
1.2
22.3 kmph / SW
Partly CloudyFeels 15 °C
Cover 48 %
Visibility 10 km
4 PM
Sunny
19 °C
59 %
1.8
19.8 kmph / SW
SunnyFeels 16 °C
Cover 0 %
Visibility 10 km
5 PM
Sunny
20 °C
60 %
0.9
20.2 kmph / SW
SunnyFeels 16 °C
Cover 16 %
Visibility 10 km
6 PM
Partly Cloudy
19 °C
61 %
0.2
25.6 kmph / SW
Partly CloudyFeels 15 °C
Cover 52 %
Visibility 10 km
7 PM
Partly Cloudy
18 °C
62 %
0
23.8 kmph / SW
Partly CloudyFeels 14 °C
Cover 59 %
Visibility 10 km
8 PM
Overcast
17 °C
66 %
0
22.7 kmph / SW
OvercastFeels 13 °C
Cover 99 %
Visibility 10 km
9 PM
Cloudy
17 °C
70 %
0
24.5 kmph / SW
CloudyFeels 13 °C
Cover 78 %
Visibility 10 km
10 PM
Patchy rain nearby
17 °C
72 %
0
24.1 kmph / WSW
Patchy rain nearbyFeels 13 °C
Cover 51 %
Visibility 10 km
11 PM
Patchy rain nearby
17 °C
76 %
0
27.4 kmph / WNW
Patchy rain nearbyFeels 12 °C
Cover 76 %
Visibility 10 km
25°18°20°13°15°10°20°12°16°12°16°10°21°14°18°14°18°12°16°12°20°15°17°11°16°11°15°10°15°9°14°9°13°8°
14°8°15°8°14°10°15°9°14°8°14°9°13°8°14°8°12°8°12°7°12°6°11°7°11°7°12°7°OctoberWeather Overview
No. of days:
Sunny
7
Cloudy
0
Rainy
20
Snowy
0
The monthly weather averages in St Catharines consist of 7 sunny days, 0 cloudy days, 20 rainy days, and 0 snowy days.
St Catharines's Locations Weather Conditions
Canada's Hottest Cities - October 2026
1.
Trail, British Columbia
25 °C
Partly Cloudy
29%
3
4.7 kmph / SSW
2.
Grand Forks, British Columbia
24 °C
Sunny
32%
3.1
5.4 kmph / SE
3.
Castlegar, British Columbia
24 °C
Partly Cloudy
30%
3
6.5 kmph / SSE
4.
Agassiz, British Columbia
24 °C
Cloudy
46%
3
8.6 kmph / SW
5.
Kent, British Columbia
24 °C
Cloudy
46%
3
8.6 kmph / SW
6.
Chilliwack, British Columbia
24 °C
Cloudy
46%
3
8.6 kmph / SW
7.
Lethbridge, Alberta
23 °C
Partly Cloudy
23%
2.7
18.4 kmph / SSE
8.
Creston, British Columbia
23 °C
Partly Cloudy
33%
3
5.4 kmph / E
9.
Kelowna, British Columbia
23 °C
Partly Cloudy
40%
2.9
5.4 kmph / SSW
10.
Medicine Hat, Alberta
23 °C
Sunny
25%
2.5
15.8 kmph / S
Last Updated: 04 Oct 2026, 09:33 PM
City Weather RankingsFAQs About St Catharines Weather Conditions
1. What is the current temperature in St Catharines today - 04 October 2026?
1. What is the current temperature in St Catharines today - 04 October 2026?
The current temperature in St Catharines is 20°C, with a feels-like temperature of 16°C. Today's forecast shows a high of 20°C and a low of 12°C, giving a 8 degree swing through the day as of 05:00 PM 04 October 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 05:00 PM 04 October 2026: Condition : Sunny Temperature : 20°C Cool (Feels like 16°C) Humidity : 60% Wind Speed : 20.2 km/h from SW (224 degrees), Gust 7.1 m/s UV Index : 0.9 (Low Air Pressure : 1015 mb Cloud Cover : 16% Visibility : 10 km Precipitation : 0 mm (21% chance of rain)
3. What is the 10-day weather forecast for St Catharines from 05:00 PM 04 October 2026?
3. What is the 10-day weather forecast for St Catharines from 05:00 PM 04 October 2026?
From 05:00 PM 04 October 2026, St Catharines's 10-day forecast shows this trend: Today (Oct. 4) : Temp. 16°C, Hum. 67% and Overcast condition. Monday (Oct. 5) : Temp. 14°C, Hum. 57% and Sunny condition. Tuesday (Oct. 6) : Temp. 11°C, Hum. 56% and Sunny condition. Wednesday (Oct. 7) : Temp. 17°C, Hum. 66% and Sunny condition. Thursday (Oct. 8) : Temp. 16°C, Hum. 71% and Sunny condition. Friday (Oct. 9) : Temp. 15°C, Hum. 61% and Overcast condition. Saturday (Oct. 10) : Temp. 14°C, Hum. 65% and Overcast condition. Sunday (Oct. 11) : Temp. 18°C, Hum. 65% and Overcast condition. Monday (Oct. 12) : Temp. 13°C, Hum. 71% and Rain Showers condition. Tuesday (Oct. 13) : Temp. 13°C, Hum. 75% and Rain Showers condition.
4. Will it rain in St Catharines today?
4. Will it rain in St Catharines today?
As of 05:00 PM 04 October 2026, there is a 4% chance of rainfall in St Catharines later today around 2026-10-04 17:00. 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 October 2026?
5. What is the monthly weather forecast for St Catharines in October 2026?
October 2026 in St Catharines is forecast to have 7 sunny days, 20 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 6°C to highs of 25°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.
