Thunder Bay weather live forecast

Today's maximum temperature in Thunder Bay is expected to be 9°C. Select a day from the live weather forecast for Thunder Bay, Ontario, Canada for more weather parameters.

Thursday
29th Oct
9

3

2

1
Friday
30th Oct
8

-1

2

2
Saturday
31st Oct
11

-2

7

2
Sunday
1st Nov
11

1

2

2
Monday
2nd Nov
13

5

0

1

5-day weather forecast updated at 04:00 on Thursday 29th October 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 29th October 2026

Expect mostly cloudy with light rain in Thunder Bay, Ontario with a maximum temperature of 9°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 11% chance of some rain and a moderate breeze of 24 kph from the west.

9
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
11
% chance of some rain
<2
mm of rainfall expected
5
°C wind chill
24
kph wind from W

Thunder Bay weather for Friday 30th October 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of 8°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the west.

8
°C maximum temperature
-1
°C minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
5
°C wind chill
13
kph wind from W

Thunder Bay weather for Saturday 31st October 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of 11°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the west.

11
°C maximum temperature
-2
°C minimum temperature
broken clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
11
°C wind chill
7
kph wind from W

Thunder Bay weather for Sunday 1st November 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of 11°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the south-west.

11
°C maximum temperature
1
°C minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
11
°C wind chill
5
kph wind from SW

Thunder Bay weather for Monday 2nd November 2026

Expect mostly cloudy with light rain in Thunder Bay, Ontario with a maximum temperature of 13°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 49% chance of some rain and a light breeze of 8 kph from the east.

13
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
49
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
8
kph wind from E

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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