Thunder Bay weather live forecast

Today's maximum temperature in Thunder Bay is expected to be 7°C. Select a day from the live weather forecast for Thunder Bay, Ontario, Canada for more weather parameters.

Friday
16th Oct
7

0

7

2
Saturday
17th Oct
13

0

10

3
Sunday
18th Oct
16

4

8

3
Monday
19th Oct
15

2

9

2
Tuesday
20th Oct
13

1

5

2

5-day weather forecast updated at 04:00 on Friday 16th 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 Friday 16th October 2026

Expect sunshine and showers in Thunder Bay, Ontario with a maximum temperature of 7°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 9% chance of some rain and a fresh breeze of 31 kph from the north.

7
°C maximum temperature
0
°C minimum temperature
sunshine and showers
7
hours of sunshine
2
UV index (Low)
9
% chance of some rain
<2
mm of rainfall expected
2
°C wind chill
31
kph wind from N

Thunder Bay weather for Saturday 17th October 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south-west.

13
°C maximum temperature
0
°C minimum temperature
scattered clouds
10
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
13
°C wind chill
15
kph wind from SW

Thunder Bay weather for Sunday 18th October 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-west.

16
°C maximum temperature
4
°C minimum temperature
scattered clouds
8
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
20
kph wind from SW

Thunder Bay weather for Monday 19th October 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 15°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.

15
°C maximum temperature
2
°C minimum temperature
scattered clouds
9
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from W

Thunder Bay weather for Tuesday 20th October 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of 13°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.

13
°C maximum temperature
1
°C minimum temperature
scattered clouds
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
13
°C wind chill
10
kph wind from E

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