Thunder Bay 7-day weather forecast

Written by:
January 26, 2026
ESOlex // Shutterstock

Thunder Bay 7-day weather forecast

Stacker created the forecast for Thunder Bay, Ontario using data from OpenWeather. This week's high is 2 °C on Friday, while the low is -29 °C on Sunday. There are expected to be 2 sunny days and snow on 2 days this week.

There are currently no weather alerts.

Monday, February 23

- High of -16 °C, low of -27 °C (67% humidity)
- Mostly sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (2 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 7:50 AM, sunset at 6:30 PM
1 / 6
Marian Weyo // Shutterstock

Tuesday, February 24

- High of -5 °C, low of -18 °C (95% humidity)
- Overcast with a 100% chance of snow (12 mm of snow)
- Light breeze (24 km/h wind)
- Sunrise at 7:48 AM, sunset at 6:32 PM
- First quarter moon
2 / 6
VOJTa Herout // Shutterstock

Wednesday, February 25

- High of -9 °C, low of -21 °C (73% humidity)
- Partly cloudy with a 0% chance of snow
- Light breeze (20 km/h wind)
- Sunrise at 7:46 AM, sunset at 6:34 PM
3 / 6
Onishchenko Natalya // Shutterstock

Thursday, February 26

- High of -8 °C, low of -23 °C (86% humidity)
- Overcast with a 0% chance of snow
- Light air (9 km/h wind)
- Sunrise at 7:44 AM, sunset at 6:35 PM
4 / 6
Maridav // Shutterstock

Friday, February 27

- High of 2 °C, low of -10 °C (97% humidity)
- Overcast with a 68% chance of snow (1 mm of snow)
- Gentle breeze (31 km/h wind)
- Sunrise at 7:42 AM, sunset at 6:37 PM
5 / 6
Gary Whitton // Shutterstock

Saturday, February 28

- High of -12 °C, low of -21 °C (73% humidity)
- Partly cloudy with a 0% chance of snow
- Gentle breeze (36 km/h wind)
- Sunrise at 7:40 AM, sunset at 6:38 PM
6 / 6
Piyawat Nandeenopparit // Shutterstock

Sunday, March 1

- High of -13 °C, low of -29 °C (69% humidity)
- Fair with a 0% chance of snow
- Light air (9 km/h wind)
- Sunrise at 7:38 AM, sunset at 6:40 PM

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