Thunder Bay Weather Conditions
Current Temperature Level
Thunder Bay Weather Conditions
Current Temperature Level
Feels Like 22°C
Chances of Rain10%
21°10%12 AM20°12%1 AM19°12%2 AM19°12%3 AM19°9%4 AM19°8%5 AM18°9%6 AM17°10%7 AM
16°10%8 AM18°11%9 AM20°8%10 AM21°6%11 AM
24°16%12 PM24°4%1 PM21°11%2 PM20°13%3 PM19°17%4 PM18°17%5 PM
20°6%6 PM19°6%7 PM20°5%8 PM19°6%9 PM16°9%10 PM14°10%Skies are likely to remain clear overnight.
Last Updated: 2026-07-31 23:30 (Local Time)
21°NNE
Direction
7.6km/h
Wind Speed
Gust Speed
4.4m/s
Precipitation
Precipitation
0mm
Pressure
1013mb
UV Index
0Low
Today
23
°C
78%Saturday
19
°C75%Sunday
16
°C69%Monday
16
°C68%Tuesday
17
°C76%Wednesday
15
°C61%Thursday
15
°C61%Friday
17
°C76%Saturday
18
°C79%Sunday
18
°C79%Sunny
Clear Sky with temperature at 23 °C and humidity will be at 78% with 8.3 km/h winds.31°C / 16°C
Humi.78 %
Prec.0.02 mm
Sunrise
06:30 AM15hrs 5min
Sunset
09:35 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
17 °C
93 %
0
5.4 kmph / W
Clear
Feels 18 °C
Cover 12 %
Visibility 10 km
1 AM
Clear
17 °C
91 %
0
5.4 kmph / WSW
ClearFeels 18 °C
Cover 2 %
Visibility 10 km
2 AM
Patchy rain nearby
17 °C
93 %
0
7.6 kmph / W
Patchy rain nearbyFeels 17 °C
Cover 74 %
Visibility 9 km
3 AM
Clear
17 °C
87 %
0
8.3 kmph / WNW
ClearFeels 16 °C
Cover 2 %
Visibility 9 km
4 AM
Clear
17 °C
89 %
0
8.3 kmph / WNW
ClearFeels 17 °C
Cover 5 %
Visibility 9 km
5 AM
Clear
16 °C
92 %
0
6.8 kmph / WNW
ClearFeels 16 °C
Cover 3 %
Visibility 10 km
6 AM
Clear
17 °C
89 %
0
7.2 kmph / NW
ClearFeels 17 °C
Cover 0 %
Visibility 10 km
7 AM
Sunny
18 °C
87 %
0
7.6 kmph / NW
SunnyFeels 18 °C
Cover 0 %
Visibility 10 km
8 AM
Sunny
18 °C
92 %
0.2
2.5 kmph / WNW
SunnyFeels 20 °C
Cover 0 %
Visibility 10 km
9 AM
Sunny
20 °C
88 %
0.4
1.4 kmph / SSW
SunnyFeels 22 °C
Cover 0 %
Visibility 10 km
10 AM
Sunny
22 °C
82 %
0.8
2.2 kmph / N
SunnyFeels 25 °C
Cover 0 %
Visibility 10 km
11 AM
Sunny
24 °C
76 %
1.7
5 kmph / NNE
SunnyFeels 26 °C
Cover 0 %
Visibility 10 km
12 PM
Sunny
28 °C
67 %
2.3
3.2 kmph / N
SunnyFeels 31 °C
Cover 0 %
Visibility 10 km
1 PM
Sunny
30 °C
60 %
3.3
2.5 kmph / S
SunnyFeels 33 °C
Cover 0 %
Visibility 10 km
2 PM
Sunny
31 °C
59 %
4.3
6.5 kmph / SSW
SunnyFeels 35 °C
Cover 2 %
Visibility 10 km
3 PM
Sunny
31 °C
60 %
4.4
7.2 kmph / SSW
SunnyFeels 34 °C
Cover 5 %
Visibility 10 km
4 PM
Sunny
30 °C
63 %
3.8
7.9 kmph / SSW
SunnyFeels 32 °C
Cover 1 %
Visibility 10 km
5 PM
Sunny
29 °C
59 %
2.6
6.1 kmph / S
SunnyFeels 31 °C
Cover 3 %
Visibility 10 km
6 PM
Sunny
28 °C
61 %
1.8
3.2 kmph / S
SunnyFeels 29 °C
Cover 0 %
Visibility 10 km
7 PM
Sunny
28 °C
74 %
0.8
1.4 kmph / S
SunnyFeels 30 °C
Cover 0 %
Visibility 10 km
8 PM
Sunny
25 °C
72 %
0.3
3.6 kmph / S
SunnyFeels 27 °C
Cover 0 %
Visibility 10 km
9 PM
Sunny
23 °C
74 %
0
3.6 kmph / SE
SunnyFeels 26 °C
Cover 0 %
Visibility 10 km
10 PM
Clear
22 °C
77 %
0
5 kmph / ENE
ClearFeels 23 °C
Cover 0 %
Visibility 10 km
11 PM
Clear
21 °C
81 %
0
7.6 kmph / NNE
ClearFeels 22 °C
Cover 0 %
Visibility 10 km
32°11°30°13°29°15°28°14°28°13°28°12°31°14°29°19°30°13°31°13°30°13°33°14°41°17°37°24°32°18°
29°15°21°16°27°16°28°13°31°15°
20°14°24°10°31°15°31°15°32°19°29°15°25°14°29°12°34°14°31°16°31°16°JulyWeather Overview
No. of days:
Sunny
26
Cloudy
0
Rainy
0
Snowy
0
The monthly weather averages in Thunder Bay consist of 26 sunny days, 0 cloudy days, 0 rainy days, and 0 snowy days.
Thunder Bay's Locations Weather Conditions
Canada's Hottest Cities - August 2026
1.
Creston, British Columbia
31 °C
Sunny
19%
0
6.1 kmph / SW
2.
Trail, British Columbia
29 °C
Smoky haze
16%
0
3.6 kmph / N
3.
Castlegar, British Columbia
29 °C
Smoky haze
14%
0
3.6 kmph / WSW
4.
Swift Current, Saskatchewan
28 °C
Clear
29%
0
5.8 kmph / WNW
5.
Vernon, British Columbia
28 °C
Sunny
24%
0
3.6 kmph / SE
6.
Medicine Hat, Alberta
27 °C
Sunny
26%
0
9.4 kmph / NE
7.
Redcliff, Alberta
27 °C
Sunny
26%
0
9.4 kmph / NE
8.
Grand Forks, British Columbia
27 °C
Smoky haze
17%
0
5 kmph / ESE
9.
Regina, Saskatchewan
27 °C
Patchy rain nearby
43%
0
22.7 kmph / ESE
10.
Agassiz, British Columbia
27 °C
Sunny
34%
0.1
6.1 kmph / SW
Last Updated: 01 Aug 2026, 03:57 AM
City Weather RankingsFAQs About Thunder Bay Weather Conditions
1. What is the current temperature in Thunder Bay today - 31 July 2026?
1. What is the current temperature in Thunder Bay today - 31 July 2026?
The current temperature in Thunder Bay is 21°C, with a feels-like temperature of 22°C. Today's forecast shows a high of 31°C and a low of 16°C, giving a 15 degree swing through the day as of 11:30 PM 31 July 2026.
2. What are the current weather parameters in Thunder Bay today?
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 11:30 PM 31 July 2026: Condition : Clear Temperature : 21°C Pleasant (Feels like 22°C) Humidity : 81% Wind Speed : 7.6 km/h from NNE (21 degrees), Gust 4.4 m/s UV Index : 0 (Low Air Pressure : 1013 mb Cloud Cover : 0% Visibility : 10 km Precipitation : 0 mm (9% chance of rain)
3. What is the 10-day weather forecast for Thunder Bay from 11:30 PM 31 July 2026?
3. What is the 10-day weather forecast for Thunder Bay from 11:30 PM 31 July 2026?
From 11:30 PM 31 July 2026, Thunder Bay's 10-day forecast shows this trend: Today (Jul. 31) : Temp. 23°C, Hum. 78% and Sunny condition. Saturday (Aug. 1) : Temp. 19°C, Hum. 75% and Sunny condition. Sunday (Aug. 2) : Temp. 16°C, Hum. 69% and Sunny condition. Monday (Aug. 3) : Temp. 16°C, Hum. 68% and Sunny condition. Tuesday (Aug. 4) : Temp. 17°C, Hum. 76% and Sunny condition. Wednesday (Aug. 5) : Temp. 15°C, Hum. 61% and Sunny condition. Thursday (Aug. 6) : Temp. 15°C, Hum. 61% and Sunny condition. Friday (Aug. 7) : Temp. 17°C, Hum. 76% and Patchy rain nearby condition. Saturday (Aug. 8) : Temp. 18°C, Hum. 79% and Rain Showers condition. Sunday (Aug. 9) : Temp. 18°C, Hum. 79% and Rain Showers condition.
4. Will it rain in Thunder Bay today?
4. Will it rain in Thunder Bay today?
As of 11:30 PM 31 July 2026, there is no chance of rainfall in Thunder Bay throughout the day. Precipitation stands at 0 mm with a 0% chance of rain. Skies are Clear and conditions are expected to remain dry.
5. What is the monthly weather forecast for Thunder Bay in July 2026?
5. What is the monthly weather forecast for Thunder Bay in July 2026?
July 2026 in Thunder Bay is forecast to have 26 sunny days, 0 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 10°C to highs of 41°C.
6. How does the weather in Thunder Bay affect air quality?
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.
