Thunder Bay District (Thunder Bay)
August
Weather in Thunder Bay District for August 2026
Your guide to Thunder Bay District weather in August - trends and predictions
So far, August 2026 in Thunder Bay District is slightly warmer than the historical average by 2 °C.
Expect cooler weather in the next days in Thunder Bay District with the forecast suggesting a temperature of 20.5 °C, lower than the historical average.
In general, the average temperature in Thunder Bay District at the beginning of August is 23.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.9 °C by the end of August.
The climate of Thunder Bay District in August is notably wet, with an average of 15 rainy days, and a total of 132.4 mm of precipitation.
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Temperatures
Rain 🌧️
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16
Dry days
15
Rainy days
0
Snow days
21°/13°
Temperatures
16 km/h
Avg max wind
75 %
Avg humidity
Thunder Bay District Weather August
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Temperatures trend during August in Thunder Bay District
See the weather trend as well as the moving average line
August weather in Thunder Bay District day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Partly cloudy | 24° /14° | 1.4 mm | 7 | |
| 2 Aug. |  Sunny | 27° /15° | 0.6 mm | 7 | |
| 3 Aug. | Partly cloudy | 26° /15° | 0 mm | 7 | |
| 4 Aug. | Partly cloudy | 22° /14° | 0.9 mm | 6 | |
| 5 Aug. | Partly cloudy | 21° /11° | 0 mm | 6 | |
| 6 Aug. |  Overcast | 22° /12° | 1 mm | 6 | |
| 7 Aug. |  Patchy rain possible | 25° /14° | 3.1 mm | 6 | |
| 8 Aug. |  Moderate rain at times | 23° /14° | 2.6 mm | 6 | |
| 9 Aug. | Patchy rain possible | 19° /13° | 39.5 mm | 5 | |
| 10 Aug. | Patchy rain possible | 21° /11° | 0.4 mm | 5 | |
| 11 Aug. | Moderate or heavy rain shower | 22° /12° | 7.1 mm | 6 | |
| 12 Aug. | Overcast | 22° /13° | 1.7 mm | 6 | |
| 13 Aug. | Sunny | 28° /13° | 0 mm | 6.5 | |
| 14 Aug. | Sunny | 20° /13° | 0 mm | 5.9 | |
| 15 Aug. | Patchy rain possible | 17° /14° | 4.8 mm | 0.8 | |
| 16 Aug. | Sunny | 25° /12° | 0 mm | 6.6 | |
| 17 Aug. | Sunny | 25° /11° | 0 mm | 6 | |
| 18 Aug. | Partly cloudy | 24° /13° | 0 mm | 6 | |
| 19 Aug. | Sunny | 25° /13° | 0 mm | 6 | |
| 20 Aug. | Sunny | 19° /10° | 0 mm | 5 | |
| 21 Aug. | Sunny | 19° /10° | 0 mm | 5 | |
| 22 Aug. | Patchy rain possible | 14° /10° | 21.8 mm | 3 | |
| 23 Aug. |  Fog | 19° /11° | 2 mm | 5 | |
| 24 Aug. | Sunny | 20° /10° | 0.6 mm | 5 | |
| 25 Aug. | Patchy rain possible | 16° /12° | 0.4 mm | 4 | |
| 26 Aug. | Partly cloudy | 16° /10° | 0 mm | 5 | |
| 27 Aug. | Light rain shower | 22° /10° | 11.3 mm | 5 | |
| 28 Aug. | Light rain shower | 17° /9° | 0.6 mm | 5 | |
| 29 Aug. |  Patchy light rain | 19° /8° | 1 mm | 5 | |
| 30 Aug. | Mist | 25° /11° | 0.6 mm | 6 | |
| 31 Aug. | Overcast | 24° /12° | 0.6 mm | 5 | |
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Important Notice
Our weather forecast for Thunder Bay District in August 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 District forecast closer to your planned date for the most up-to-date weather information.
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Thunder Bay District in August - FAQ
What are the expected maximum and minimum temperatures in Thunder Bay District during August?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Thunder Bay District during August?
Significant rainfall exceeding 132.4 mm is expected in Thunder Bay District during August, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Thunder Bay District during August?
The average wind speed in Thunder Bay District during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Thunder Bay District
Explore the daily rainfall trends and prepare for Thunder Bay Districts August weather 💧
Typically, Thunder Bay District has 15 rainy days in August with a total of 132.4 mm of rainfall.
UV exposure in Thunder Bay District during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Where is Thunder Bay District?Get accurate weather forecasts for Thunder Bay District, located at latitude 48.382 and longitude -89.25. Stay updated with localized weather information tailored for Thunder Bay District.
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