Thunder Bay 7-day weather forecast

Stacker created the forecast for Thunder Bay, Ontario using data from OpenWeather. This week's high is 19 °C on Thursday, while the low is 6 °C on Monday. There are expected to be 2 sunny days and rain on 5 days this week.

There are currently no weather alerts.

Monday, September 14

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1 / 6

Tuesday, September 15

- High of 17 °C, low of 11 °C (74% humidity)
- Partly cloudy with a 100% chance of rain (4 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Gentle breeze (31 km/h wind)
- Sunrise at 7:33 AM, sunset at 8:10 PM

Leonid Ikan // Shutterstock

2 / 6

Wednesday, September 16

- High of 13 °C, low of 8 °C (66% humidity)
- Sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (15 km/h wind)
- Sunrise at 7:35 AM, sunset at 8:08 PM

Jaromir Chalabala // Shutterstock

3 / 6

Thursday, September 17

- High of 19 °C, low of 10 °C (53% humidity)
- Sunny with a 20% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Light air (11 km/h wind)
- Sunrise at 7:36 AM, sunset at 8:06 PM

Marian Weyo // Shutterstock

4 / 6

Friday, September 18

- High of 15 °C, low of 10 °C (79% humidity)
- Overcast with a 28% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Light air (10 km/h wind)
- Sunrise at 7:38 AM, sunset at 8:04 PM
- First quarter moon

Jurga Jot // Shutterstock

5 / 6

Saturday, September 19

- High of 17 °C, low of 14 °C (78% humidity)
- Overcast with a 20% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (13 km/h wind)
- Sunrise at 7:39 AM, sunset at 8:02 PM

Leonid Ikan // Shutterstock

6 / 6

Sunday, September 20

- High of 14 °C, low of 9 °C (67% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (16 km/h wind)
- Sunrise at 7:40 AM, sunset at 8:00 PM