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Thunder Bay 7-day weather forecast
Stacker created the forecast for Thunder Bay, Ontario using data from OpenWeather. This week's high is 14 °C on Monday, while the low is 4 °C on Tuesday. There is expected to be 1 sunny day and rain on 5 days this week.
There are currently no weather alerts.
Monday, October 13
- High of 14 °C, low of 8 °C (52% humidity)- Sunny with a 100% chance of rain (5 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (27 km/h wind)
- Sunrise at 8:13 AM, sunset at 7:12 PM
- Last quarter moon
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1 / 6
Ahmet Naim // Shutterstock
Tuesday, October 14
- High of 12 °C, low of 4 °C (45% humidity)
- Partly sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 8:15 AM, sunset at 7:10 PM
- Partly sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 8:15 AM, sunset at 7:10 PM

2 / 6
Leonid Ikan // Shutterstock
Wednesday, October 15
- High of 12 °C, low of 5 °C (53% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (3 UV index)
- Light air (11 km/h wind)
- Sunrise at 8:16 AM, sunset at 7:08 PM
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (3 UV index)
- Light air (11 km/h wind)
- Sunrise at 8:16 AM, sunset at 7:08 PM

3 / 6
Alex Stemmer // Shutterstock
Thursday, October 16
- High of 11 °C, low of 9 °C (96% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Light breeze (17 km/h wind)
- Sunrise at 8:18 AM, sunset at 7:06 PM
- Overcast with a 100% chance of rain (4 mm of rain)
- Light breeze (17 km/h wind)
- Sunrise at 8:18 AM, sunset at 7:06 PM

4 / 6
Onishchenko Natalya // Shutterstock
Friday, October 17
- High of 14 °C, low of 12 °C (85% humidity)
- Overcast with a 100% chance of rain (2 mm of rain)
- Light breeze (17 km/h wind)
- Sunrise at 8:19 AM, sunset at 7:04 PM
- Overcast with a 100% chance of rain (2 mm of rain)
- Light breeze (17 km/h wind)
- Sunrise at 8:19 AM, sunset at 7:04 PM

5 / 6
Marian Weyo // Shutterstock
Saturday, October 18
- High of 12 °C, low of 7 °C (79% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Light breeze (27 km/h wind)
- Sunrise at 8:21 AM, sunset at 7:02 PM
- Overcast with a 100% chance of rain (4 mm of rain)
- Light breeze (27 km/h wind)
- Sunrise at 8:21 AM, sunset at 7:02 PM

6 / 6
LeManna // Shutterstock
Sunday, October 19
- High of 7 °C, low of 4 °C (96% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Light breeze (18 km/h wind)
- Sunrise at 8:22 AM, sunset at 7:00 PM
- Overcast with a 100% chance of rain (3 mm of rain)
- Light breeze (18 km/h wind)
- Sunrise at 8:22 AM, sunset at 7:00 PM