St Catharines Weather Conditions
Current Temperature Level

24 °C

Pleasant

Partly CloudyFeels Like 26°CHumidity 57%

48 AQI

PM2.5 : 9PM10 : 15

Air quality index is: Good

Last Updated: 2025-09-14 14:15 (Local Time)

Map

St Catharines

St Catharines Weather Parameters

Wind Speed

9 km/h

Light breeze

Gust Speed

3 m/s

Direction

345° NNW

Cloud Cover

25 %

Visibility

24 km

Precipitation

0 mm

Pressure

1008

1009

1010

1011

1012

1013

1014

1015

1016

1017

1018

1019

1019 mb

High

940956

981

1005

Moderate

1013

1030

1046+

UV Index

UV Index5

Moderate

Suggestions for

TodaySt Catharines

14 Sep.

Hydration• Stay Hydrated

Clothing• Layering Must

Driving• Enjoy Driving

Sunscreen• Apply

Trending in Canada

India Floods 2025: How Waterlogging Is Creating a Hidden Air Pollution Crisis?

St Catharines 10-Days Weather Forecast

See Monthly

Today

17°C

88 %

Monday

17°C

87 %

Tuesday

18°C

86 %

Wednesday

18°C

80 %

Thursday

21°C

60 %

Friday

17°C

67 %

Saturday

14°C

54 %

Sunday

16°C

60 %

Monday

17°C

78 %

Tuesday

18°C

94 %

Today14 Sep

Partly Cloudy

Periodic cloud cover with temperature at 17 °C. Humidity will be at 88%, and winds will be at 9.7 km/h.

22°C / 13°C

Humi.88 %

Prec.0 mm

Sunrise

06:55 AM

12hrs 33min

Sunset

07:28 PM

Temperature (°C)

12 AMTime11 PM

Time

Condition

Temp

Humidity

Wind Speed & Dir.

12 AM

Fog

16 °C

97 %

9 kmph / WSW

Feels 15.8 °C

Cover 100 %

Visibility 10 km

1 AM

Fog

15 °C

98 %

6.8 kmph / WSW

Feels 15.4 °C

Cover 100 %

Visibility 10 km

2 AM

Fog

15 °C

97 %

5 kmph / WSW

Feels 15 °C

Cover 100 %

Visibility 10 km

3 AM

Fog

14 °C

97 %

4.3 kmph / WNW

Feels 14.8 °C

Cover 100 %

Visibility 10 km

4 AM

Fog

14 °C

97 %

4.3 kmph / NNW

Feels 14.5 °C

Cover 100 %

Visibility 10 km

5 AM

Mist

14 °C

96 %

5.4 kmph / NNW

Feels 14.4 °C

Cover 23 %

Visibility 10 km

6 AM

Fog

13 °C

99 %

5 kmph / NW

Feels 14 °C

Cover 100 %

Visibility 10 km

7 AM

Fog

13 °C

99 %

5.4 kmph / NW

Feels 14.1 °C

Cover 100 %

Visibility 10 km

8 AM

Mist

15 °C

96 %

0.2

6.1 kmph / NW

Feels 14.9 °C

Cover 72 %

Visibility 10 km

9 AM

Cloudy

16 °C

91 %

0.8

7.2 kmph / N

Feels 16.6 °C

Cover 68 %

Visibility 10 km

10 AM

Partly Cloudy

18 °C

84 %

1.9

7.6 kmph / N

Feels 18.3 °C

Cover 46 %

Visibility 10 km

11 AM

Partly Cloudy

20 °C

77 %

3.4

7.9 kmph / NNW

Feels 19.6 °C

Cover 34 %

Visibility 10 km

12 PM

Partly Cloudy

21 °C

73 %

4.9

9.7 kmph / N

Feels 20.8 °C

Cover 36 %

Visibility 10 km

1 PM

Partly Cloudy

21 °C

71 %

5.6

9 kmph / N

Feels 21.4 °C

Cover 36 %

Visibility 10 km

2 PM

Partly Cloudy

24 °C

57 %

5.4

9 kmph / NNW

Feels 24 °C

Cover 25 %

Visibility 24 km

3 PM

Partly Cloudy

22 °C

71 %

4.4

8.3 kmph / N

Feels 21.8 °C

Cover 36 %

Visibility 10 km

4 PM

Partly Cloudy

22 °C

72 %

2.9

5.4 kmph / N

Feels 21.7 °C

Cover 36 %

Visibility 10 km

5 PM

Partly Cloudy

21 °C

73 %

1.5

6.1 kmph / NNE

Feels 21.3 °C

Cover 36 %

Visibility 10 km

6 PM

Partly Cloudy

20 °C

75 %

0.5

6.1 kmph / NE

Feels 20 °C

Cover 35 %

Visibility 10 km

7 PM

Partly Cloudy

19 °C

83 %

5.4 kmph / ENE

Feels 18.6 °C

Cover 35 %

Visibility 10 km

8 PM

Partly Cloudy

18 °C

91 %

6.1 kmph / ESE

Feels 17.5 °C

Cover 36 %

Visibility 10 km

9 PM

Mist

17 °C

95 %

7.2 kmph / ESE

Feels 16.8 °C

Cover 37 %

Visibility 10 km

10 PM

Fog

16 °C

98 %

7.6 kmph / ESE

Feels 16.2 °C

Cover 100 %

Visibility 10 km

11 PM

Fog

16 °C

99 %

6.5 kmph / E

Feels 15.9 °C

Cover 100 %

Visibility 10 km

Today

17°C

88 %

Monday

17°C

87 %

Tuesday

18°C

86 %

Wednesday

18°C

80 %

Thursday

21°C

60 %

Friday

17°C

67 %

Saturday

14°C

54 %

Sunday

16°C

60 %

Monday

17°C

78 %

Tuesday

18°C

94 %

Temp22 °C

ConditionPartly Cloudy

Humidity71 %

Feels21.8 °C

Cover36 %

Visibility10 km

Wind Speed & Dir.8.3 kmph / N

UV4.4

St Catharines 30-Days (September 2025) Weather Forecast

See Hourly

Sun.

Mon.

Tue.

Wed.

Thu.

Fri.

Sat.

1Mon.

27°11 °C

2Tue.

28°13 °C

3Wed.

29°13 °C

4Thu.

21°14 °C

5Fri.

27°11 °C

6Sat.

21°11 °C

7Sun.

20°12 °C

8Mon.

19°9 °C

9Tue.

24°8 °C

10Wed.

25°11 °C

11Thu.

24°12 °C

12Fri.

26°12 °C

13Sat.

25°12 °C

14Today

22°15 °C

15Mon.

22°14 °C

16Tue.

22°12 °C

17Wed.

23°16 °C

18Thu.

24°17 °C

19Fri.

26°18 °C

20Sat.

21°17 °C

21Sun.

17°16 °C

22Mon.

17°13 °C

23Tue.

16°13 °C

24Wed.

17°14 °C

25Thu.

12°11 °C

26Fri.

14°10 °C

27Sat.

21°15 °C

28Sun.

20°14 °C

29Mon.

18°13 °C

30Tue.

17°12 °C

SeptemberWeather Overview

No. of days:

Sunny

Cloudy

Rainy

Snowy

The monthly weather averages in St Catharines consist of 8 sunny days, 7 cloudy days, 12 rainy days, and 0 snowy days.

St Catharines's Locations Weather Conditions

Locations

Temp

Condition

Humi.

Wind Speed & Direction

St Catharines

24 °C

Partly Cloudy

57%

5.4

9 kmph / NNW

Canada's Hottest Cities - September 2025

Hottest

Coldest

RankCityTemperatureWeather ConditionHumidityUVWind Speed & Dir.

Burlington, Canada

26 °C

Sunny

47%

4.3

7.6 kmph / NNE

Hamilton, Canada

26 °C

Sunny

47%

4.2

9.4 kmph / NNE

Central Elgin, Canada

26 °C

Partly cloudy

48%

5.9

9.4 kmph / SE

London, Canada

26 °C

Partly cloudy

48%

5.7

12.2 kmph / NNE

St Thomas, Canada

26 °C

Partly cloudy

48%

5.9

9.4 kmph / SE

Windsor, Canada

26 °C

Sunny

44%

6.1

9.4 kmph / ENE

Chatham, Canada

26 °C

Sunny

46%

5.9

4 kmph / NW

Swift Current, Canada

25 °C

Partly Cloudy

44%

4.1

18.4 kmph / S

Sarnia, Canada

25 °C

Sunny

54%

5.9

15.8 kmph / NNE

10.

Kenora, Canada

25 °C

Partly cloudy

61%

3.1

16.9 kmph / SE

Last Updated: 14 Sept 2025, 06:28 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

Trending in Canada

St Catharines 10-Days Weather Forecast

St Catharines 30-Days (September 2025) Weather Forecast

SeptemberWeather Overview

No. of days:

St Catharines's Locations Weather Conditions

Canada's Hottest Cities - September 2025

Prana sense

Weather Station

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Over 2 lakh residents reported air pollution hospitalisations in Delhi from 2022 to 2024.

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St Catharines Weather Conditions
Current Temperature Level