Current Weather
9:25 AM
73°F
Mostly cloudy
RealFeel® 75°
Pleasant
RealFeel Shade™ 70°
Pleasant
RealFeel®
75°
RealFeel Shade™
70°
Max UV Index
3.8 (Moderate)
Wind
SW 9 mph
Wind Gusts
9 mph
Humidity
56%
Indoor Humidity
56% (Slightly Humid)
Dew Point
57° F
Pressure
↔ 29.99 in
Cloud Cover
76%
Visibility
15 mi
Cloud Ceiling
20000 ft
Day
6/5
85°Hi
RealFeel®
87°
Very Warm
RealFeel Shade™
81°
Pleasant
Breezy and very warm with clouds drifting through sunshine
Max UV Index10.0 (Very High)
AccuLumen Brightness Index™7 (Bright)
WindSW 14 mph
Wind Gusts30 mph
Probability of Precipitation1%
Probability of Thunderstorms0%
Precipitation0.00 in
Cloud Cover48%
Night
6/5
67°Lo
RealFeel®
61°
Cool
Mostly cloudy and warm; breezy late with a passing shower or two
WindSSW 13 mph
Wind Gusts18 mph
Probability of Precipitation58%
Probability of Thunderstorms12%
Precipitation0.04 in
Rain0.04 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover94%
Sun & Moon
15 hrs 15 mins
Rise
5:38 AM
Set
8:53 PM
Waning Gibbous
Rise
12:27 AM
Set
10:06 AM
Temperature History
6/5High
Low
Forecast
85°
67°
Average
73°
52°
Last Year
64°
57°
Current Weather Conditions in St. Catharines
St. Catharines, Ontario is currently Mostly cloudy with a temperature of 73°. The current RealFeel® Temperature is 75° (Pleasant) based on observed conditions including 56% humidity, 76% cloud cover, a UV index of 4, and winds of 9 mph. In shade, the RealFeel Shade™ is 70°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for St. Catharines, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.
