St Catharines Weather Conditions
Current Temperature Level

21 °C

Pleasant

SunnyFeels Like 21°CHumidity 64%

17 AQI

PM2.5 : 3PM10 : 14

Air quality index is: Good

Last Updated: 2025-09-30 15:45 (Local Time)

Map

St Catharines

St Catharines Weather Parameters

Wind Speed

29 km/h

Moderate breeze

Gust Speed

10 m/s

Direction

58° ENE

Cloud Cover

0 %

Visibility

24 km

Precipitation

0 mm

Pressure

1020

1021

1022

1023

1024

1025

1026

1027

1028

1029

1030

1031

1023 mb

High

940956

981

1005

Moderate

1013

1030

1046+

UV Index

UV Index4

Moderate

Suggestions for

TodaySt Catharines

30 Sep.

Umbrella• Optional

Clothing• Layering Must

Driving• Enjoy Driving

Sunscreen• Apply

Trending in Canada

Air Quality Monitoring for Logistics: Smarter Deliveries with Data

St Catharines 10-Days Weather Forecast

See Monthly

Today

17°C

64 %

Wednesday

14°C

70 %

Thursday

13°C

64 %

Friday

16°C

72 %

Saturday

20°C

67 %

Sunday

20°C

63 %

Monday

21°C

65 %

Tuesday

21°C

68 %

Wednesday

16°C

74 %

Thursday

9°C

45 %

Today30 Sep

Sunny

Clear Sky with temperature at 17 °C and humidity will be at 64% with 29.5 km/h winds.

25°C / 11°C

Humi.64 %

Prec.0 mm

Sunrise

07:13 AM

11hrs 46min

Sunset

06:59 PM

Temperature (°C)

12 AMTime11 PM

Time

Condition

Temp

Humidity

Wind Speed & Dir.

12 AM

Clear

15 °C

54 %

3.2 kmph / SSE

Feels 14.6 °C

Cover 0 %

Visibility 10 km

1 AM

Clear

13 °C

69 %

1.8 kmph / N

Feels 13.3 °C

Cover 0 %

Visibility 10 km

2 AM

Clear

13 °C

81 %

1.1 kmph / NNE

Feels 12.4 °C

Cover 6 %

Visibility 10 km

3 AM

Clear

12 °C

81 %

0.4 kmph / SSE

Feels 12.2 °C

Cover 2 %

Visibility 10 km

4 AM

Clear

12 °C

82 %

5.4 kmph / N

Feels 11.7 °C

Cover 3 %

Visibility 10 km

5 AM

Clear

12 °C

79 %

7.2 kmph / NNE

Feels 11.2 °C

Cover 0 %

Visibility 10 km

6 AM

Clear

11 °C

77 %

8.6 kmph / NE

Feels 11.5 °C

Cover 0 %

Visibility 10 km

7 AM

Clear

11 °C

72 %

14.8 kmph / NE

Feels 10.8 °C

Cover 1 %

Visibility 10 km

8 AM

Sunny

13 °C

80 %

15.5 kmph / NE

Feels 12.6 °C

Cover 12 %

Visibility 10 km

9 AM

Partly Cloudy

16 °C

82 %

0.6

16.9 kmph / NE

Feels 15.6 °C

Cover 34 %

Visibility 10 km

10 AM

Sunny

19 °C

74 %

1.7

19.1 kmph / NE

Feels 18.6 °C

Cover 2 %

Visibility 10 km

11 AM

Sunny

21 °C

58 %

3.2

22.7 kmph / NE

Feels 20.6 °C

Cover 3 %

Visibility 10 km

12 PM

Sunny

22 °C

59 %

4.6

25.9 kmph / NE

Feels 21.9 °C

Cover 4 %

Visibility 10 km

1 PM

Sunny

23 °C

58 %

5.3

28.8 kmph / NE

Feels 24.4 °C

Cover 3 %

Visibility 10 km

2 PM

Sunny

24 °C

58 %

5.1

29.5 kmph / NE

Feels 25.1 °C

Cover 3 %

Visibility 10 km

3 PM

Sunny

21 °C

64 %

29.2 kmph / ENE

Feels 24.2 °C

Cover 0 %

Visibility 24 km

4 PM

Sunny

25 °C

46 %

2.5

27 kmph / ENE

Feels 25.3 °C

Cover 0 %

Visibility 10 km

5 PM

Sunny

24 °C

41 %

1.2

24.8 kmph / ENE

Feels 25.1 °C

Cover 0 %

Visibility 10 km

6 PM

Sunny

23 °C

42 %

0.3

21.2 kmph / ENE

Feels 24.7 °C

Cover 0 %

Visibility 10 km

7 PM

Clear

20 °C

46 %

17.3 kmph / ENE

Feels 20.2 °C

Cover 0 %

Visibility 10 km

8 PM

Clear

18 °C

52 %

15.8 kmph / ENE

Feels 18 °C

Cover 0 %

Visibility 10 km

9 PM

Clear

17 °C

59 %

17.6 kmph / E

Feels 16.3 °C

Cover 0 %

Visibility 10 km

10 PM

Clear

15 °C

64 %

24.1 kmph / ENE

Feels 15 °C

Cover 0 %

Visibility 10 km

11 PM

Clear

14 °C

75 %

28.4 kmph / ENE

Feels 13.9 °C

Cover 0 %

Visibility 10 km

Today

17°C

64 %

Wednesday

14°C

70 %

Thursday

13°C

64 %

Friday

16°C

72 %

Saturday

20°C

67 %

Sunday

20°C

63 %

Monday

21°C

65 %

Tuesday

21°C

68 %

Wednesday

16°C

74 %

Thursday

9°C

45 %

Temp25 °C

ConditionSunny

Humidity46 %

Feels25.3 °C

Cover0 %

Visibility10 km

Wind Speed & Dir.27 kmph / ENE

UV2.5

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.

26°12 °C

14Sun.

24°13 °C

15Mon.

24°12 °C

16Tue.

27°11 °C

17Wed.

24°12 °C

18Thu.

28°13 °C

19Fri.

23°14 °C

20Sat.

23°10 °C

21Sun.

31°12 °C

22Mon.

27°18 °C

23Tue.

28°18 °C

24Wed.

26°16 °C

25Thu.

22°18 °C

26Fri.

27°16 °C

27Sat.

29°14 °C

28Sun.

27°16 °C

29Mon.

27°11 °C

30Today

25°11 °C

SeptemberWeather Overview

No. of days:

Sunny

Cloudy

Rainy

Snowy

The monthly weather averages in St Catharines consist of 16 sunny days, 9 cloudy days, 1 rainy days, and 0 snowy days.

St Catharines's Locations Weather Conditions

Locations

Temp

Condition

Humi.

Wind Speed & Direction

St Catharines

21 °C

Sunny

64%

29.2 kmph / ENE

Canada's Hottest Cities - September 2025

Hottest

Coldest

RankCityTemperatureWeather ConditionHumidityUVWind Speed & Dir.

Brandon, Canada

30 °C

Partly cloudy

38%

3.9

31.3 kmph / SSE

Winnipeg, Canada

29 °C

Sunny

45%

3.7

24.1 kmph / SSE

Rosser, Canada

29 °C

Sunny

45%

3.7

24.1 kmph / SSE

Oakbank, Canada

29 °C

Sunny

45%

3.7

24.1 kmph / SSE

Weyburn, Canada

29 °C

Sunny

37%

36.4 kmph / SSE

Regina, Canada

28 °C

Sunny

40%

3.8

31.7 kmph / SSE

Bratts Lake No 129, Canada

28 °C

Sunny

40%

29.9 kmph / SSE

Yorkton, Canada

28 °C

Sunny

36%

3.8

33.5 kmph / SSE

Estevan, Canada

28 °C

Sunny

37%

4.3

36.7 kmph / SSE

10.

Kenora, Canada

27 °C

Partly cloudy

45%

18.4 kmph / SE

Last Updated: 30 Sept 2025, 08:00 PM

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

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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:

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St Catharines Weather Conditions
Current Temperature Level