St Catharines Weather Conditions
Current Temperature Level

30 °C

Pleasant

Partly cloudyFeels Like 33° CHumidity 52%

52 AQI

PM2.5 : 10PM10 : 22

Air quality index is: Moderate

Last Updated: 2025-08-11 12:00 (Local Time)

Map

St Catharines

St Catharines Weather Parameters

Wind Speed

10 km/h

Light breeze

Gust Speed

4 m/s

Direction

214° SW

Cloud Cover

50 %

Visibility

24 km

Precipitation

0 mm

Pressure

1020

1021

1022

1023

1024

1025

1026

1027

1028

1029

1030

1031

1020 mb

High

940956

981

1005

Moderate

1013

1030

1046+

UV Index

UV Index7

High

Suggestions for

TodaySt Catharines

11 Aug.

Umbrella• Optional

Clothing• Breathable

Driving• Enjoy Driving

Sunscreen• Apply

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St Catharines 10-Days Weather Forecast

See Monthly

Today

27°C

66 %

Tuesday

27°C

73 %

Wednesday

26°C

72 %

Thursday

21°C

62 %

Friday

21°C

49 %

Saturday

25°C

51 %

Sunday

24°C

72 %

Monday

21°C

51 %

Tuesday

22°C

43 %

Wednesday

24°C

46 %

Today11 Aug

Sunny

Clear Sky with temperature at 27 °C and humidity will be at 66% with 23.4 km/h winds.

34°C / 22°C

Humi.66 %

Prec.0 mm

Sunrise

06:18 AM

14hrs 7min

Sunset

08:25 PM

Temperature (°C)

12 AMTime11 PM

Time

Condition

Temp

Humidity

Wind Speed & Dir.

12 AM

Clear

23 °C

78 %

12.6 kmph / S

Feels 25.2 °C

Cover 0 %

Visibility 10 km

1 AM

Clear

23 °C

82 %

12.2 kmph / SSW

Feels 24.9 °C

Cover 1 %

Visibility 10 km

2 AM

Clear

23 °C

80 %

14.4 kmph / S

Feels 24.8 °C

Cover 2 %

Visibility 10 km

3 AM

Clear

22 °C

75 %

17.6 kmph / SSW

Feels 24.7 °C

Cover 0 %

Visibility 10 km

4 AM

Clear

22 °C

72 %

19.8 kmph / SSW

Feels 24.6 °C

Cover 2 %

Visibility 10 km

5 AM

Clear

22 °C

74 %

18.7 kmph / S

Feels 24.6 °C

Cover 6 %

Visibility 10 km

6 AM

Partly Cloudy

22 °C

76 %

16.6 kmph / SSW

Feels 24.6 °C

Cover 26 %

Visibility 10 km

7 AM

Sunny

23 °C

77 %

0.1

14 kmph / SSW

Feels 25.3 °C

Cover 19 %

Visibility 10 km

8 AM

Partly Cloudy

24 °C

71 %

0.6

13.3 kmph / SSW

Feels 26.2 °C

Cover 54 %

Visibility 10 km

9 AM

Sunny

26 °C

69 %

1.7

13.7 kmph / SSW

Feels 28 °C

Cover 15 %

Visibility 10 km

10 AM

Sunny

29 °C

63 %

3.3

11.2 kmph / SW

Feels 32.8 °C

Cover 0 %

Visibility 10 km

11 AM

Sunny

31 °C

60 %

5.2

10.1 kmph / SW

Feels 35.9 °C

Cover 0 %

Visibility 10 km

12 PM

Partly cloudy

30 °C

52 %

6.8

10.4 kmph / SW

Feels 37.6 °C

Cover 50 %

Visibility 24 km

1 PM

Sunny

33 °C

53 %

7.6

10.1 kmph / SSW

Feels 38.5 °C

Cover 0 %

Visibility 10 km

2 PM

Sunny

34 °C

51 %

7.4

10.1 kmph / SSW

Feels 38.4 °C

Cover 0 %

Visibility 10 km

3 PM

Sunny

33 °C

49 %

6.2

12.2 kmph / S

Feels 37.6 °C

Cover 0 %

Visibility 10 km

4 PM

Sunny

33 °C

49 %

4.4

17.3 kmph / SSW

Feels 36.5 °C

Cover 0 %

Visibility 10 km

5 PM

Sunny

32 °C

50 %

2.6

21.2 kmph / SSW

Feels 35.2 °C

Cover 0 %

Visibility 10 km

6 PM

Sunny

31 °C

52 %

1.2

23.4 kmph / SSW

Feels 33.7 °C

Cover 0 %

Visibility 10 km

7 PM

Sunny

29 °C

56 %

0.4

20.5 kmph / SSW

Feels 31.5 °C

Cover 0 %

Visibility 10 km

8 PM

Sunny

27 °C

63 %

17.3 kmph / SSW

Feels 29.5 °C

Cover 0 %

Visibility 10 km

9 PM

Clear

26 °C

73 %

16.2 kmph / SSW

Feels 28.1 °C

Cover 1 %

Visibility 10 km

10 PM

Clear

25 °C

78 %

15.5 kmph / SSW

Feels 27.2 °C

Cover 1 %

Visibility 10 km

11 PM

Clear

25 °C

66 %

15.5 kmph / SSW

Feels 26.5 °C

Cover 17 %

Visibility 10 km

Today

27°C

66 %

Tuesday

27°C

73 %

Wednesday

26°C

72 %

Thursday

21°C

62 %

Friday

21°C

49 %

Saturday

25°C

51 %

Sunday

24°C

72 %

Monday

21°C

51 %

Tuesday

22°C

43 %

Wednesday

24°C

46 %

Temp33 °C

ConditionSunny

Humidity53 %

Feels38.5 °C

Cover0 %

Visibility10 km

Wind Speed & Dir.10.1 kmph / SSW

UV7.6

St Catharines 30-Days (August 2025) Weather Forecast

See Hourly

Sun.

Mon.

Tue.

Wed.

Thu.

Fri.

Sat.

1Fri.

26°14 °C

2Sat.

26°15 °C

3Sun.

30°14 °C

4Mon.

29°16 °C

5Tue.

31°16 °C

6Wed.

31°19 °C

7Thu.

31°19 °C

8Fri.

31°18 °C

9Sat.

33°20 °C

10Sun.

33°21 °C

11Today

33°20 °C

12Tue.

31°21 °C

13Wed.

28°22 °C

14Thu.

26°21 °C

15Fri.

27°22 °C

16Sat.

31°23 °C

17Sun.

28°22 °C

18Mon.

22°19 °C

19Tue.

21°16 °C

20Wed.

23°14 °C

21Thu.

26°17 °C

22Fri.

28°18 °C

23Sat.

29°20 °C

24Sun.

25°18 °C

25Mon.

25°19 °C

26Tue.

24°18 °C

27Wed.

24°18 °C

28Thu.

25°18 °C

29Fri.

25°18 °C

30Sat.

24°18 °C

31Sun.

24°18 °C

AugustWeather Overview

No. of days:

Sunny

Cloudy

Rainy

Snowy

The monthly weather averages in St Catharines consist of 15 sunny days, 2 cloudy days, 13 rainy days, and 0 snowy days.

Canada's Hottest Cities - August 2025

Hottest

Coldest

RankCityTemperatureWeather ConditionHumidityUVWind Speed & Dir.

Bathurst, Canada

34 °C

Partly cloudy

47%

6.8

5.4 kmph / WNW

Edmundston, Canada

33 °C

Sunny

46%

6.9

7.6 kmph / WSW

Fredericton, Canada

33 °C

Sunny

47%

10.8 kmph / WSW

Miramichi, Canada

33 °C

Sunny

60%

6.8

10.8 kmph / SW

Saint Hilaire De Dorset, Canada

32 °C

Sunny

45%

7.3

7.6 kmph / WNW

Happy Valley-Goose Bay, Canada

32 °C

Sunny

38%

6.1

21.2 kmph / WNW

Peterborough, Canada

32 °C

Sunny

41%

6.8

18.4 kmph / SSW

Moncton, Canada

32 °C

Partly cloudy

49%

6.9

10.1 kmph / SW

Milton, Canada

32 °C

Sunny

43%

6.7

10.4 kmph / S

10.

Hamilton, Canada

32 °C

Sunny

43%

6.7

11.9 kmph / SSW

Last Updated: 11 Aug 2025, 04:28 PM

City Weather Rankings

Prana sense

Experience precise, real-time weather monitoring with our Automatic Weather Station, reliable source for accurate meteorological data.

Weather Station

Experience precise, real-time weather monitoring with our Automatic Weather Station, reliable source for accurate meteorological data.

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St Catharines Weather ConditionsCurrent Temperature Level

St Catharines Weather Parameters

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St Catharines 10-Days Weather Forecast

St Catharines 30-Days (August 2025) Weather Forecast

AugustWeather Overview

No. of days:

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St Catharines Weather Conditions
Current Temperature Level