Thunder Bay weather live forecast

Today's maximum temperature in Thunder Bay is expected to be -17°C. Select a day from the live weather forecast for Thunder Bay, Ontario, Canada for more weather parameters.

Wednesday
28th Jan
-17

-21

5

1
Thursday
29th Jan
-17

-24

6

1
Friday
30th Jan
-13

-25

2

1
Saturday
31st Jan
-10

-20

8

1
Sunday
1st Feb
-6

-14

0

1

5-day weather forecast updated at 04:00 on Wednesday 28th January 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 Wednesday 28th January 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of -17°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 15 kph from the north-west.

-17
°C maximum temperature
-21
°C minimum temperature
broken clouds
5
hours of sunshine
1
UV index (Low)
0
cm of snow expected
-25
°C wind chill
15
kph wind from NW

Thunder Bay weather for Thursday 29th January 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of -17°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 11 kph from the north.

-17
°C maximum temperature
-24
°C minimum temperature
broken clouds
6
hours of sunshine
1
UV index (Low)
0
cm of snow expected
-24
°C wind chill
11
kph wind from N

Thunder Bay weather for Friday 30th January 2026

Expect broken clouds in Thunder Bay, Ontario with a maximum temperature of -13°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 16 kph from the north-west.

-13
°C maximum temperature
-25
°C minimum temperature
broken clouds
2
hours of sunshine
1
UV index (Low)
0
cm of snow expected
-20
°C wind chill
16
kph wind from NW

Thunder Bay weather for Saturday 31st January 2026

Expect scattered clouds in Thunder Bay, Ontario with a maximum temperature of -10°C, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 11 kph from the north-west.

-10
°C maximum temperature
-20
°C minimum temperature
scattered clouds
8
hours of sunshine
1
UV index (Low)
0
cm of snow expected
-15
°C wind chill
11
kph wind from NW

Thunder Bay weather for Sunday 1st February 2026

Expect overcast skies in Thunder Bay, Ontario with a maximum temperature of -6°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 11 kph from the south-west.

-6
°C maximum temperature
-14
°C minimum temperature
overcast skies
0
hours of sunshine
1
UV index (Low)
0
cm of snow expected
-10
°C wind chill
11
kph wind from SW

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Metric (°C / mm) | Imperial (°F / inches)

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