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St. Catharines, Ontario

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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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2 PM

74°

RealFeel® 71°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

42%

Showers

RealFeel Shade™68°

WindSW 18 mph

Air QualityFair

Max UV Index2.6 (Moderate)

Wind Gusts27 mph

Humidity49%

Indoor Humidity49% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling10000 ft

3 PM

74°

RealFeel® 74°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

47%

Partly sunny w/ showers

RealFeel Shade™68°

WindSW 17 mph

Air QualityFair

Max UV Index7.1 (High)

Wind Gusts25 mph

Humidity46%

Indoor Humidity46% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover39%

Rain0.01 in

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

75°

RealFeel® 76°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

43%

Partly sunny

RealFeel Shade™71°

WindSW 16 mph

Air QualityFair

Max UV Index4.8 (Moderate)

Wind Gusts24 mph

Humidity44%

Indoor Humidity44% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

74°

RealFeel® 74°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

32%

Partly sunny

RealFeel Shade™71°

WindSW 15 mph

Air QualityFair

Max UV Index3.4 (Moderate)

Wind Gusts21 mph

Humidity44%

Indoor Humidity44% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

73°

RealFeel® 72°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

32%

Partly sunny

RealFeel Shade™70°

WindSW 13 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts17 mph

Humidity47%

Indoor Humidity47% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

72°

RealFeel® 70°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

28%

Partly sunny

RealFeel Shade™69°

WindSSW 9 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts14 mph

Humidity51%

Indoor Humidity51% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

69°

RealFeel® 67°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

20%

Partly sunny

RealFeel Shade™67°

WindS 8 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts9 mph

Humidity57%

Indoor Humidity57% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

66°

RealFeel® 64°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

20%

Partly cloudy

WindS 7 mph

Air QualityFair

Wind Gusts9 mph

Humidity65%

Indoor Humidity62% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

64°

RealFeel® 61°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

20%

Partly cloudy

WindSSE 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity73%

Indoor Humidity62% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

61°

RealFeel® 59°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

20%

Partly cloudy

WindSSE 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity78%

Indoor Humidity62% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

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 74° with a RealFeel® of 71°, showers with a 42% 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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