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St. Catharines, Ontario Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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4 PM

73°

RealFeel® 77°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™71°

WindNNW 5 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts6 mph

Humidity60%

Indoor Humidity60% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover67%

Visibility10 mi

Cloud Ceiling15100 ft

5 PM

75°

RealFeel® 75°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly cloudy

RealFeel Shade™72°

WindNW 6 mph

Air QualityFair

Max UV Index1.7 (Low)

Wind Gusts7 mph

Humidity56%

Indoor Humidity56% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover83%

Visibility10 mi

Cloud Ceiling14700 ft

6 PM

76°

RealFeel® 76°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™73°

WindNNW 6 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts6 mph

Humidity52%

Indoor Humidity52% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover73%

Visibility10 mi

Cloud Ceiling19800 ft

7 PM

75°

RealFeel® 75°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Intermittent clouds

RealFeel Shade™73°

WindN 5 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts5 mph

Humidity54%

Indoor Humidity54% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling24900 ft

8 PM

73°

RealFeel® 71°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly sunny

RealFeel Shade™71°

WindNE 6 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts6 mph

Humidity59%

Indoor Humidity59% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

70°

RealFeel® 68°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly clear

WindENE 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity65%

Indoor Humidity65% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

68°

RealFeel® 66°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly clear

WindENE 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity71%

Indoor Humidity70% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

65°

RealFeel® 63°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

0%

Mostly clear

WindENE 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity77%

Indoor Humidity69% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for St. Catharines

AccuWeather's hourly forecast for St. Catharines provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 73° with a RealFeel® of 77°, intermittent clouds with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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