St. Catharines Hourly Weather

Overcast 17°

Overcast, feels like 15°.

St. Catharines, Ontario, Canada · Tuesday, 3 November 2026 23:45 local time

Low/High
14°/23°
Humidity
66%
Visibility
26.3 km
Wind
10.4 km/h
Dew point
10°
UV
0.0

Next 24 Hours

St. Catharines Hourly Weather — 48 hours ahead

TimeWeatherTemperatureFeels likeRainHumidityWind
Overcast 16°15°0% 72%10 km/h
Overcast 17°15°0% 64%11 km/h
Partly cloudy 17°15°0% 60%13 km/h
Overcast 17°15°0% 60%14 km/h
Overcast 17°15°0% 62%14 km/h
Mostly clear 16°14°0% 63%14 km/h
Partly cloudy 16°14°0% 64%14 km/h
Partly cloudy 16°14°0% 66%14 km/h
Partly cloudy 17°14°0% 64%15 km/h
Mostly clear 18°16°0% 61%14 km/h
Mostly clear 20°18°0% 55%17 km/h
Overcast 22°20°0% 52%19 km/h
Overcast 22°20°0% 54%16 km/h
Partly cloudy 22°20°0% 55%18 km/h
Partly cloudy 21°20°0% 57%14 km/h
Overcast 23°21°1% 54%13 km/h
Overcast 24°23°3% 50%14 km/h
Overcast 24°23°10% 46%10 km/h
Overcast 22°21°27% 49%7 km/h
Overcast 21°20°49% 52%9 km/h
Overcast 22°19°68% 46%15 km/h
Overcast 22°19°80% 48%18 km/h
Light rain 20°18°89% 55%18 km/h
Light rain 19°18°94% 69%10 km/h
Light rain 19°18°93% 64%16 km/h
Light rain 19°18°88% 70%18 km/h
Overcast 20°17°84% 66%23 km/h
Overcast 18°16°84% 84%27 km/h
Overcast 18°17°85% 88%20 km/h
Overcast 18°17°81% 89%19 km/h
Overcast 18°17°66% 90%22 km/h
Partly cloudy 17°17°46% 89%11 km/h
Partly cloudy 16°16°29% 89%12 km/h
Partly cloudy 15°13°17% 78%20 km/h
Partly cloudy 15°13°7% 82%15 km/h
Partly cloudy 15°13°0% 79%15 km/h
Mostly clear 16°13°0% 73%21 km/h
Partly cloudy 15°12°0% 79%22 km/h
Overcast 15°11°0% 73%24 km/h
Partly cloudy 14°11°0% 77%22 km/h
Partly cloudy 14°11°0% 69%23 km/h
Partly cloudy 13°10°0% 76%21 km/h
Partly cloudy 13°11°1% 82%18 km/h
Partly cloudy 14°11°2% 76%19 km/h
Overcast 15°11°3% 65%20 km/h
Overcast 16°12°3% 56%23 km/h
Overcast 15°12°3% 57%21 km/h
Overcast 15°12°3% 60%19 km/h

Summary

Over the next 48 hours in St. Catharines, temperatures range from 13–24°C. The highest chance of rain is 94%, around 22:00 on Wednesday (local time).

Updated at 23:47 local time, 3 November 2026

St. Catharines Hourly Temperature and Chance of Rain

St. Catharines Air Quality

Good · AQI 33

Air quality is good and poses little or no risk for outdoor activity.

PM2.5 (µg/m³)8.7
PM10 (µg/m³)10
O₃ (µg/m³)75
NO₂ (µg/m³)7.6
SO₂ (µg/m³)1.8
CO (µg/m³)201

Air Quality →

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