Thunder Bay Weather Conditions

Current Temperature Level

overcast
24°C
27°C17°C
Pleasant

Overcast

Feels Like 24°C

Chances of Rain13%

Good

22AQI

Humidity

55%

Nowovercast24°13%6 PMovercast24°11%7 PMsunny26°3%8 PMpartly cloudy23°4%9 PMsunny21°3%10 PMclear19°4%11 PMclear17°13%12 AMfog17°34%1 AMpartly cloudy17°17%2 AMclear16°11%3 AMclear15°11%4 AMclear14°12%5 AMclear14°12%6 AMclear13°12%7 AMsunny12°12%8 AMsunny14°10%9 AMsunny16°6%10 AMsunny18°4%11 AMsunny20°2%12 PMsunny21°2%1 PMsunny22°2%2 PMsunny23°1%3 PMpartly cloudy24°2%4 PMpartly cloudy23°3%
.

Skies may remain grey and overcast.

Last Updated: 2026-08-07 17:00 (Local Time)

Thunder Bay Weather Parameters

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Thunder Bay 10-Days Weather Forecast

See Monthly
Today7 Aug.


Sunny

Sunny

Clear Sky with temperature at 21 °C and humidity will be at 61% with 17.6 km/h winds.


temperature icon

27°C  /  17°C

temperature iconHumi.61 %
temperature iconPrec.0.01 mm


Sunrise icon

Sunrise

06:40 AM

14hrs 45min

Sunset icon

Sunset

09:25 PM
Temperature (°C)
.
12 AMTime11 PM

Time

Condition

Temperature IconTemp

Humidity IconHumidity

UV IconUV

Wind IconWind Speed & Dir.

12 AM

ClearClear

19 °C

57 %

0

16.9 kmph /  SSW

Feels Like IconFeels 16 °C

Temperature IconCover 0 %

Visibility IconVisibility 10 km

1 AM

ClearClear

19 °C

58 %

0

17.6 kmph /  SSW

Feels Like IconFeels 15 °C

Temperature IconCover 0 %

Visibility IconVisibility 10 km

2 AM

ClearClear

18 °C

59 %

0

15.8 kmph /  SSW

Feels Like IconFeels 15 °C

Temperature IconCover 0 %

Visibility IconVisibility 10 km

3 AM

ClearClear

17 °C

60 %

0

11.5 kmph /  SW

Feels Like IconFeels 15 °C

Temperature IconCover 0 %

Visibility IconVisibility 10 km

4 AM

ClearClear

17 °C

63 %

0

8.3 kmph /  WSW

Feels Like IconFeels 15 °C

Temperature IconCover 0 %

Visibility IconVisibility 5 km

5 AM

ClearClear

17 °C

64 %

0

11.5 kmph /  SSW

Feels Like IconFeels 15 °C

Temperature IconCover 0 %

Visibility IconVisibility 9 km

6 AM

ClearClear

17 °C

66 %

0

10.8 kmph /  SW

Feels Like IconFeels 15 °C

Temperature IconCover 0 %

Visibility IconVisibility 9 km

7 AM

Patchy rain nearbyPatchy rain nearby

17 °C

64 %

0

9 kmph /  SW

Feels Like IconFeels 15 °C

Temperature IconCover 74 %

Visibility IconVisibility 9 km

8 AM

SunnySunny

18 °C

66 %

0.1

8.3 kmph /  SSW

Feels Like IconFeels 17 °C

Temperature IconCover 0 %

Visibility IconVisibility 10 km

9 AM

SunnySunny

21 °C

62 %

0.8

10.1 kmph /  SW

Feels Like IconFeels 21 °C

Temperature IconCover 0 %

Visibility IconVisibility 10 km

10 AM

SunnySunny

24 °C

60 %

1.8

11.5 kmph /  WSW

Feels Like IconFeels 23 °C

Temperature IconCover 4 %

Visibility IconVisibility 10 km

11 AM

SunnySunny

26 °C

60 %

3.2

10.8 kmph /  WSW

Feels Like IconFeels 26 °C

Temperature IconCover 5 %

Visibility IconVisibility 10 km

12 PM

CloudyCloudy

26 °C

59 %

4.5

9.4 kmph /  W

Feels Like IconFeels 27 °C

Temperature IconCover 66 %

Visibility IconVisibility 10 km

1 PM

SunnySunny

24 °C

74 %

5.5

7.6 kmph /  W

Feels Like IconFeels 26 °C

Temperature IconCover 3 %

Visibility IconVisibility 10 km

2 PM

Partly CloudyPartly Cloudy

24 °C

70 %

5.5

7.9 kmph /  WSW

Feels Like IconFeels 25 °C

Temperature IconCover 58 %

Visibility IconVisibility 9 km

3 PM

SunnySunny

27 °C

62 %

4.4

4.3 kmph /  SW

Feels Like IconFeels 29 °C

Temperature IconCover 9 %

Visibility IconVisibility 9 km

4 PM

Partly CloudyPartly Cloudy

26 °C

56 %

3.1

4.7 kmph /  SW

Feels Like IconFeels 27 °C

Temperature IconCover 50 %

Visibility IconVisibility 10 km

5 PM

OvercastOvercast

24 °C

55 %

2.2

5 kmph /  SW

Feels Like IconFeels 24 °C

Temperature IconCover 99 %

Visibility IconVisibility 10 km

6 PM

OvercastOvercast

24 °C

50 %

1.8

5 kmph /  SSW

Feels Like IconFeels 24 °C

Temperature IconCover 93 %

Visibility IconVisibility 10 km

7 PM

SunnySunny

26 °C

46 %

0.9

5.8 kmph /  SSW

Feels Like IconFeels 26 °C

Temperature IconCover 24 %

Visibility IconVisibility 10 km

8 PM

Partly CloudyPartly Cloudy

23 °C

47 %

0.3

4.7 kmph /  WSW

Feels Like IconFeels 23 °C

Temperature IconCover 48 %

Visibility IconVisibility 10 km

9 PM

SunnySunny

21 °C

55 %

0

5.8 kmph /  WNW

Feels Like IconFeels 21 °C

Temperature IconCover 10 %

Visibility IconVisibility 10 km

10 PM

ClearClear

19 °C

65 %

0

10.4 kmph /  NNW

Feels Like IconFeels 18 °C

Temperature IconCover 0 %

Visibility IconVisibility 10 km

11 PM

ClearClear

17 °C

89 %

0

12.6 kmph /  NNW

Feels Like IconFeels 17 °C

Temperature IconCover 1 %

Visibility IconVisibility 10 km

Temp24 °C


ConditionOvercast


Humidity55 %

Feels24 °C


Cover99 %


Visibility10 km

Wind Speed & Dir.5 kmph /  SW


UV2.2

Thunder Bay 30-Days (August 2026) Weather Forecast

See Hourly
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny28°15°
2
Sunny28°11°
3
Sunny30°12°
4
Sunny24°16°
5
Sunny28°10°
6
Sunny30°10°
7Today
Sunny27°17°
8
Sunny24°11°
9
Sunny21°12°
10
Sunny23°11°
11
Sunny23°11°
12
Sunny21°11°
13
Sunny20°10°
14
Sunny15°10°
15
Rain Showers23°14°
16
Rain Showers22°15°
17
Heavy Rain21°14°
18
Rain Showers21°14°
19
Rain Showers22°14°
20
Rain Showers21°14°
21
Heavy Rain21°13°
22
Rain Showers21°13°
23
Heavy Rain22°14°
24
Rain Showers21°14°
25
Rain Showers21°14°
26
Rain Showers21°13°
27
Rain Showers21°13°
28
Rain Showers20°13°
29
Rain Showers21°13°
30
Rain Showers22°14°
31
Rain Showers21°14°

AugustWeather Overview

No. of days:

Sunny

Sunny

14

Cloudy

Cloudy

0

Rainy

Rainy

17

Snowy

Snowy

0


The monthly weather averages in Thunder Bay consist of 14 sunny days, 0 cloudy days, 17 rainy days, and 0 snowy days.

Canada's Hottest Cities - August 2026

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Last Updated: 07 Aug 2026, 09:27 PM

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FAQs About Thunder Bay Weather Conditions


1. What is the current temperature in Thunder Bay today - 07 August 2026?

The current temperature in Thunder Bay is 24°C, with a feels-like temperature of 24°C. Today's forecast shows a high of 27°C and a low of 17°C, giving a 10 degree swing through the day as of 05:00 PM 07 August 2026.

2. What are the current weather parameters in Thunder Bay today?

Here is a complete overview of Thunder Bay's current weather conditions as of 05:00 PM 07 August 2026: Condition : Overcast Temperature : 24°C Pleasant (Feels like 24°C) Humidity : 55% Wind Speed : 5 km/h from SW (214 degrees), Gust 2.3 m/s UV Index : 2.2 (Moderate Air Pressure : 1008 mb Cloud Cover : 99% Visibility : 10 km Precipitation : 0 mm (5% chance of rain)

3. What is the 10-day weather forecast for Thunder Bay from 05:00 PM 07 August 2026?

From 05:00 PM 07 August 2026, Thunder Bay's 10-day forecast shows this trend: Today (Aug. 7) : Temp. 21°C, Hum. 61% and Sunny condition. Saturday (Aug. 8) : Temp. 18°C, Hum. 65% and Sunny condition. Sunday (Aug. 9) : Temp. 17°C, Hum. 68% and Sunny condition. Monday (Aug. 10) : Temp. 17°C, Hum. 64% and Sunny condition. Tuesday (Aug. 11) : Temp. 16°C, Hum. 68% and Partly Cloudy condition. Wednesday (Aug. 12) : Temp. 17°C, Hum. 62% and Partly Cloudy condition. Thursday (Aug. 13) : Temp. 16°C, Hum. 67% and Partly Cloudy condition. Friday (Aug. 14) : Temp. 16°C, Hum. 81% and Light Drizzle condition. Saturday (Aug. 15) : Temp. 19°C, Hum. 77% and Rain Showers condition. Sunday (Aug. 16) : Temp. 18°C, Hum. 75% and Rain Showers condition.

4. Will it rain in Thunder Bay today?

As of 05:00 PM 07 August 2026, there is a 13% chance of rainfall in Thunder Bay later today around 2026-08-07 17:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.

5. What is the monthly weather forecast for Thunder Bay in August 2026?

August 2026 in Thunder Bay is forecast to have 14 sunny days, 17 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 10°C to highs of 30°C.

6. How does the weather in Thunder Bay affect air quality?

Weather directly impacts air quality in Thunder Bay. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.