Thunder Bay Weather Conditions
Current Temperature Level

19 °C

Cool

Partly cloudyFeels Like 19°CHumidity 83%

22 AQI

PM2.5 : 4PM10 : 14

Air quality index is: Good

Last Updated: 2025-08-21 12:15 (Local Time)

Map

Thunder Bay

Thunder Bay Weather Parameters

Wind Speed

11 km/h

Light breeze

Gust Speed

4 m/s

Direction

174° S

Cloud Cover

75 %

Visibility

32 km

Precipitation

0 mm

Pressure

1020

1021

1022

1023

1024

1025

1026

1027

1028

1029

1030

1031

1021 mb

High

940956

981

1005

Moderate

1013

1030

1046+

UV Index

UV Index5

Moderate

Suggestions for

TodayThunder Bay

21 Aug.

Hydration• Use Moisturizers

Clothing• Layering Must

Driving• Drive Safely

Sunscreen• Apply

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Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

Thunder Bay 10-Days Weather Forecast

See Monthly

Today

17°C

91 %

Friday

20°C

83 %

Saturday

18°C

61 %

Sunday

11°C

80 %

Monday

12°C

69 %

Tuesday

14°C

59 %

Wednesday

17°C

61 %

Thursday

17°C

64 %

Friday

17°C

70 %

Saturday

17°C

69 %

Today21 Aug

Fog

Dense fog throughout the day. Humidity will be near 91%, with winds at 15.1 km/h.

23°C / 12°C

Humi.91 %

Prec.0 mm

Sunrise

07:00 AM

14hrs 0min

Sunset

09:00 PM

Temperature (°C)

12 AMTime11 PM

Time

Condition

Temp

Humidity

Wind Speed & Dir.

12 AM

Mist

17 °C

95 %

5 kmph / WSW

Feels 16.5 °C

Cover 2 %

Visibility 10 km

1 AM

Mist

16 °C

97 %

5 kmph / WSW

Feels 15.9 °C

Cover 19 %

Visibility 10 km

2 AM

Fog

16 °C

98 %

3.2 kmph / W

Feels 15.5 °C

Cover 100 %

Visibility 10 km

3 AM

Fog

15 °C

97 %

4 kmph / WSW

Feels 14.9 °C

Cover 100 %

Visibility 10 km

4 AM

Fog

14 °C

98 %

4.3 kmph / W

Feels 14.2 °C

Cover 100 %

Visibility 10 km

5 AM

Fog

14 °C

97 %

4.3 kmph / W

Feels 13.5 °C

Cover 100 %

Visibility 10 km

6 AM

Fog

13 °C

97 %

4.3 kmph / W

Feels 13.2 °C

Cover 100 %

Visibility 10 km

7 AM

Fog

13 °C

98 %

5.4 kmph / WNW

Feels 13 °C

Cover 100 %

Visibility 10 km

8 AM

Fog

14 °C

97 %

0.2

3.2 kmph / WNW

Feels 14.4 °C

Cover 100 %

Visibility 10 km

9 AM

Fog

15 °C

97 %

0.5

5.8 kmph / W

Feels 15.2 °C

Cover 100 %

Visibility 10 km

10 AM

Mist

17 °C

97 %

1.6

3.6 kmph / SSW

Feels 17 °C

Cover 100 %

Visibility 10 km

11 AM

Overcast

17 °C

88 %

3.4

5 kmph / S

Feels 17.1 °C

Cover 100 %

Visibility 10 km

12 PM

Partly cloudy

19 °C

83 %

4.7

10.8 kmph / S

Feels 17.8 °C

Cover 75 %

Visibility 32 km

1 PM

Overcast

21 °C

92 %

5.8

11.9 kmph / S

Feels 20.5 °C

Cover 95 %

Visibility 10 km

2 PM

Partly Cloudy

21 °C

68 %

6.4

13.7 kmph / S

Feels 21.4 °C

Cover 46 %

Visibility 10 km

3 PM

Cloudy

22 °C

75 %

5.9

15.1 kmph / S

Feels 22 °C

Cover 86 %

Visibility 10 km

4 PM

Partly Cloudy

22 °C

74 %

4.7

14.8 kmph / S

Feels 21.8 °C

Cover 59 %

Visibility 10 km

5 PM

Overcast

21 °C

73 %

3.3

14 kmph / S

Feels 20.5 °C

Cover 100 %

Visibility 10 km

6 PM

Overcast

19 °C

88 %

1.6

12.6 kmph / S

Feels 19.4 °C

Cover 88 %

Visibility 10 km

7 PM

Cloudy

19 °C

92 %

0.7

12.2 kmph / S

Feels 18.9 °C

Cover 65 %

Visibility 10 km

8 PM

Cloudy

18 °C

84 %

0.1

8.3 kmph / SSE

Feels 17.7 °C

Cover 83 %

Visibility 10 km

9 PM

Fog

17 °C

97 %

7.2 kmph / SSE

Feels 16.9 °C

Cover 100 %

Visibility 10 km

10 PM

Fog

16 °C

98 %

5.4 kmph / SSE

Feels 16 °C

Cover 100 %

Visibility 10 km

11 PM

Fog

16 °C

97 %

5.4 kmph / SSE

Feels 15.9 °C

Cover 100 %

Visibility 10 km

Today

17°C

91 %

Friday

20°C

83 %

Saturday

18°C

61 %

Sunday

11°C

80 %

Monday

12°C

69 %

Tuesday

14°C

59 %

Wednesday

17°C

61 %

Thursday

17°C

64 %

Friday

17°C

70 %

Saturday

17°C

69 %

Temp21 °C

ConditionOvercast

Humidity92 %

Feels20.5 °C

Cover95 %

Visibility10 km

Wind Speed & Dir.11.9 kmph / S

UV5.8

Thunder Bay 30-Days (August 2025) Weather Forecast

See Hourly

Sun.

Mon.

Tue.

Wed.

Thu.

Fri.

Sat.

1Fri.

29°12 °C

2Sat.

28°15 °C

3Sun.

28°15 °C

4Mon.

21°12 °C

5Tue.

19°12 °C

6Wed.

17°12 °C

7Thu.

27°14 °C

8Fri.

25°15 °C

9Sat.

20°17 °C

10Sun.

27°17 °C

11Mon.

28°17 °C

12Tue.

27°17 °C

13Wed.

18°12 °C

14Thu.

17°12 °C

15Fri.

28°14 °C

16Sat.

23°14 °C

17Sun.

18°10 °C

18Mon.

19°11 °C

19Tue.

22°15 °C

20Wed.

23°13 °C

21Today

23°16 °C

22Fri.

25°16 °C

23Sat.

22°14 °C

24Sun.

13°9 °C

25Mon.

19°8 °C

26Tue.

20°8 °C

27Wed.

23°12 °C

28Thu.

23°13 °C

29Fri.

24°14 °C

30Sat.

24°16 °C

31Sun.

24°13 °C

AugustWeather Overview

No. of days:

Sunny

Cloudy

Rainy

Snowy

The monthly weather averages in Thunder Bay consist of 10 sunny days, 9 cloudy days, 5 rainy days, and 0 snowy days.

Thunder Bay's Locations Weather Conditions

Locations

Temp

Condition

Humi.

Wind Speed & Direction

James Street South

19 °C

Partly cloudy

83%

4.7

10.8 kmph / S

Thunder Bay

19 °C

Partly cloudy

83%

4.7

10.8 kmph / S

Canada's Hottest Cities - August 2025

Hottest

Coldest

RankCityTemperatureWeather ConditionHumidityUVWind Speed & Dir.

Senneterre, Canada

24 °C

Partly cloudy

44%

5.2

5 kmph / WNW

Greater Sudbury, Canada

24 °C

Partly cloudy

44%

6.5

4 kmph / ESE

Lake of Bays, Canada

24 °C

Mist

47%

7.6 kmph / ENE

Sainte Cecile de Masham, Canada

24 °C

Sunny

50%

6.9

7.9 kmph / ENE

Aylesford, Canada

23 °C

Sunny

33%

7.2

8.6 kmph / NW

Kingston, Canada

23 °C

Sunny

53%

7.2

9.7 kmph / NE

Gatineau, Canada

23 °C

Sunny

50%

10.4 kmph / E

Ottawa, Canada

23 °C

Sunny

53%

10.8 kmph / ENE

Sudbury, Canada

23 °C

Partly cloudy

53%

6.5

4 kmph / ESE

10.

Tiverton, Canada

23 °C

Cloudy

63%

6.9

17.6 kmph / N

Last Updated: 21 Aug 2025, 04:42 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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Thunder Bay Weather ConditionsCurrent Temperature Level

Thunder Bay Weather Parameters

Trending in Canada

Thunder Bay 10-Days Weather Forecast

Thunder Bay 30-Days (August 2025) Weather Forecast

AugustWeather Overview

No. of days:

Thunder Bay's Locations Weather Conditions

Canada's Hottest Cities - August 2025

Prana sense

Weather Station

Recent Blogs On Weather

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

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Thunder Bay Weather Conditions
Current Temperature Level