Flights to Thunder Bay, ON, Canada

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Weather in Thunder Bay

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January-8°C-15°C
February-7°C-15°C
March-1°C-8°C
April4°C-1°C
May12°C4°C
June17°C9°C
July21°C13°C
August21°C13°C
September17°C10°C
October9°C3°C
November2°C-3°C
December-4°C-10°C
Hottest Month
21°C
July
Coldest month
-15°C
January
Sunny days
247
days per year
Snow days
30
days per year

14 day forecast

Sunday
30 Mar
2°C-5°C
6 Apr
30%
-2°C-8°C
Monday
31 Mar
-2°C-7°C
7 Apr
72%
-1°C-8°C
Tuesday
1 Apr
-2°C-8°C
8 Apr
65%
-2°C-9°C
Wednesday
2 Apr
85%
-2°C-4°C
9 Apr
39%
-9°C-13°C
Thursday
3 Apr
67%
2°C-5°C
10 Apr
-6°C-14°C
Friday
4 Apr
3°C-4°C
11 Apr
2°C-7°C
Saturday
5 Apr
87%
3°C-6°C
12 Apr
2°C-8°C

Cheapest month to fly to Thunder Bay

Explore price trends for trips to Thunder Bay

Annual Avg. Price204 CAD
April 202590 CAD
May 202590 CAD
June 202590 CAD
July 2025105 CAD
August 2025180 CAD
September 2025152 CAD
October 2025152 CAD
November 2025208 CAD
December 2025208 CAD
January 2026269 CAD
February 2026362 CAD
March 2026541 CAD
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