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Canada weather

Weather in Thunder Bay for October 2026

Your guide to Thunder Bay weather in October - trends and predictions

    Temperatures

  • Until now, October 2026 in Thunder Bay has been nearly identical to the historical average, with a temperature of 13.2 °C (showing only a slight deviation of 0 °C).

  • The forecast for the coming days of October 2026 predicts a temperature of 9.7 °C , which is warmer than usual.

  • In general, the average temperature in Thunder Bay at the beginning of October is 16.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.2 °C by the end of October.

    • Rain 🌧️

  • Thunder Bay experiences moderate rainfall in October, with an average of 7 rainy days and a total precipitation of 80.2 mm.

    • More

  • Is October a good time to visit Thunder Bay? check out the best time to travel to Thunder Bay page.

  • ✨ Is October a good time to visit Thunder Bay? – Ask the AI Weatherman

Average dry days
24
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
12°/5°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Thunder Bay Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light drizzle
16°
2
Overcast
20°
3
Cloudy
19°
4
Patchy rain possible
18°
5
Overcast
16°
6
Light rain
14°
7
Overcast
14°
8
Patchy rain possible
12°
9
Patchy rain possible
12°
10
Overcast
13°
11
Overcast
15°
12
Light rain
11°
13
Light rain
12°
14
Overcast
9°
15
Light rain
11°
16
Overcast
11°
17
Overcast
14°
18
Light drizzle
14°
19
Light rain
11°
20
Light rain
12°
21
Moderate rain
12°
22
Overcast
11°
23
Overcast
9°
24
Patchy rain possible
11°
25
Light rain
11°
26
Overcast
7°
27
Light rain
8°
28
Patchy rain possible
13°
29
Light rain
11°
30
Sunny
11°
31
Partly cloudy
8°

Temperatures trend during October in Thunder Bay

See the weather trend as well as the moving average line

October weather in Thunder Bay day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
1 Oct. Light drizzle
Light drizzle
 16° /10° 0.1 mm 3.7
2 Oct. Overcast
Overcast
 20° /10° 0.3 mm 3.7
3 Oct. Cloudy
Cloudy
 19° /9° 0.7 mm 3.6
4 Oct. Patchy rain possible
Patchy rain possible
 18° /9° 0.4 mm 3.5
5 Oct. Overcast
Overcast
 16° /8° 0.3 mm 3.4
6 Oct. Light rain
Light rain
 14° /7° 2.8 mm 3
7 Oct. Overcast
Overcast
 14° /5° 0.3 mm 3
8 Oct. Patchy rain possible
Patchy rain possible
 12° /3° 0.1 mm 3
9 Oct. Patchy rain possible
Patchy rain possible
 12° /3° 0.1 mm 3
10 Oct. Overcast
Overcast
 13° /7° 0 mm 3
11 Oct. Overcast
Overcast
 15° /7° 0.4 mm 3
12 Oct. Light rain
Light rain
 11° /6° 2.9 mm 2
13 Oct. Light rain
Light rain
 12° /7° 8.7 mm 2.8
14 Oct. Overcast
Overcast
 9° /4° 0.1 mm 2
15 Oct. Light rain
Light rain
 11° /4° 2.7 mm 2
16 Oct. Overcast
Overcast
 11° /2° 0.2 mm 2.6
17 Oct. Overcast
Overcast
 14° /5° 0 mm 2.6
18 Oct. Light drizzle
Light drizzle
 14° /9° 2 mm 2.5
19 Oct. Light rain
Light rain
 11° /7° 5 mm 2.4
20 Oct. Light rain
Light rain
 12° /5° 2.7 mm 2.4
21 Oct. Moderate rain
Moderate rain
 12° /6° 24.5 mm 2
22 Oct. Overcast
Overcast
 11° /4° 0.9 mm 2
23 Oct. Overcast
Overcast
 9° /4° 0.4 mm 2
24 Oct. Patchy rain possible
Patchy rain possible
 11° /5° 1.9 mm 2
25 Oct. Light rain
Light rain
 11° /5° 2.7 mm 2
26 Oct. Overcast
Overcast
 7° /1° 0 mm 2.1
27 Oct. Light rain
Light rain
 8° /1° 3.7 mm 0.5
28 Oct. Patchy rain possible
Patchy rain possible
 13° /8° 2.1 mm 1.3
29 Oct. Light rain
Light rain
 11° /5° 9.8 mm 1.3
30 Oct. Sunny
Sunny
 11° /3° 0 mm 4
31 Oct. Partly cloudy
Partly cloudy
 8° /1° 0 mm 3
Next
Important Notice
Our weather forecast for Thunder Bay in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Thunder Bay forecast closer to your planned date for the most up-to-date weather information.
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Thunder Bay in October - FAQ

What are the expected maximum and minimum temperatures in Thunder Bay during October?
During October, expect a variety of temperatures with highs around 12° and lows near 5°, suitable for diverse activities and preferences.

How much rainfall should be expected in Thunder Bay during October?
Moderate rainfall is anticipated in Thunder Bay during October, with a total of 80.2 mm spread over approximately 7 days. Considering plans for rainy days is advisable.

Will it snow in Thunder Bay in October 2026?
Thunder Bay typically sees 0 cm of snowfall during October.

What are the typical wind conditions in Thunder Bay during October?
The average wind speed in Thunder Bay during October is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Thunder Bay

Explore the daily rainfall trends and prepare for Thunder Bays October weather 💧
Typically, Thunder Bay has 7 rainy days in October with a total of 80.2 mm of rainfall.

UV exposure in Thunder Bay during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Location coordinates Where is Thunder Bay?

Get accurate weather forecasts for Thunder Bay, located at latitude 48.382 and longitude -89.25. Stay updated with localized weather information tailored for Thunder Bay.

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