Thunder Bay weather live forecast

Today's maximum temperature in Thunder Bay is expected to be 28°C. Select a day from the live weather forecast for Thunder Bay, Ontario, Canada for more weather parameters.

Thursday
2nd Jul
28

14

13

7
Friday
3rd Jul
24

15

9

7
Saturday
4th Jul
22

14

6

4
Sunday
5th Jul
24

13

13

7
Monday
6th Jul
25

12

11

7

5-day weather forecast updated at 04:00 on Thursday 2nd July 2026 GMT

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The 5-day weather forecast for Ontario (Thunder Bay) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Thunder Bay weather forecast by day

Below are the detailed weather forecasts for Thunder Bay for the next 5 days.

Thunder Bay weather for Thursday 2nd July 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

28
°C maximum temperature
14
°C minimum temperature
scattered clouds
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
20
kph wind from W

Thunder Bay weather for Friday 3rd July 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 24°C, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.

24
°C maximum temperature
15
°C minimum temperature
scattered clouds
9
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
24
°C wind chill
10
kph wind from E

Thunder Bay weather for Saturday 4th July 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-east.

22
°C maximum temperature
14
°C minimum temperature
broken clouds
6
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from NE

Thunder Bay weather for Sunday 5th July 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 24°C, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-east.

24
°C maximum temperature
13
°C minimum temperature
scattered clouds
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
24
°C wind chill
11
kph wind from NE

Thunder Bay weather for Monday 6th July 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 25°C, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.

25
°C maximum temperature
12
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from S

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Ontario - quick facts
Flight time^✝	8 hours
Time difference	UK -5 to -6 hours
Language(s)	English, French
Currency	Canadian Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes