Thunder Bay
Tomorrow
Tomorrow weather in Thunder Bay
Saturday, 12th September 2026
19°
Overcast
Feels like 15° · Low 12°
The weather tomorrow in Thunder Bay will be much colder than today, with max temperatures up to 19°.
The rain is expected to get stronger, the expected precipitation are 9 mm.
The wind tomorrow will get lighter comparing to today but still be strong and reach over 23 km/h.
19° / 12°
Temp
78%
Rain
23 km/h
Wind
73%
Humidity
Thunder Bay Weather Pages
Thunder Bay hourly forecast for tomorrow
Scroll right to see more weather forecasts for Thunder Bay tomorrow
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 07:29 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 20:16 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  |  | |  | | | | |  |  |  | |  | | | | | | | | | |  | | |  | Next |
| temperatures | 16.9° | 17.1° | 16.6° | 15.9° | 16° | 16.3° | 16.6° | 16.7° | Sunrise | 16.7° | 14.8° | 14.6° | 15.5° | 16.9° | 17.3° | 17.9° | 18.3° | 18.6° | 19° | 18.5° | 17.7° | 16.8° | Sunset | 15.2° | 12.9° | 11.9° | |
| Feels like | 17.6° | 17.6° | 16.1° | 14.1° | 14.4° | 15.1° | 15.6° | 15.4° | 15.4° | 11.1° | 11.3° | 11.7° | 12.6° | 12.8° | 13.4° | 13.9° | 14.4° | 15.2° | 14.3° | 13.6° | 13° | 11.6° | 9.8° | 9.3° | |||
| wind speed | 6 km/h | 9 km/h | 13 km/h | 18 km/h | 18 km/h | 17 km/h | 17 km/h | 18 km/h | 17 km/h | 23 km/h | 21 km/h | 21 km/h | 21 km/h | 20 km/h | 19 km/h | 19 km/h | 18 km/h | 17 km/h | 19 km/h | 18 km/h | 17 km/h | 16 km/h | 14 km/h | 13 km/h | |||
| wind degree | 252° | 220° | 216° | 210° | 213° | 205° | 213° | 225° | 258° | 305° | 307° | 311° | 310° | 301° | 298° | 295° | 291° | 282° | 285° | 292° | 285° | 298° | 319° | 297° | |||
| wind direction | WSW | SW | SW | SSW | SW | SSW | SSW | SW | W | NW | NW | NW | NW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | NW | WNW | |||
| Precipitation | 0 mm | 1.1 mm | 1.6 mm | 4.7 mm | 0 mm | 0 mm | 1.2 mm | 0.2 mm | 0.9 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 30% | 78% | 81% | 91% | 34% | 34% | 78% | 49% | 74% | 20% | 24% | 9% | 14% | 5% | 5% | 2% | 4% | 11% | 11% | 2% | 3% | 13% | 16% | 11% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 90% | 98% | 97% | 98% | 98% | 99% | 99% | 99% | 96% | 88% | 84% | 74% | 60% | 52% | 49% | 48% | 46% | 48% | 49% | 51% | 55% | 60% | 64% | 64% | |||
| dew point | 15.3° | 16.7° | 16.1° | 15.6° | 15.7° | 16.1° | 16.5° | 16.5° | 16.1° | 12.8° | 11.9° | 10.9° | 9.1° | 7.4° | 7° | 7° | 6.9° | 7.8° | 7.6° | 7.5° | 7.7° | 7.5° | 6.3° | 5.4° | |||
| visibility | 10 km | 10 km | 10 km | 7 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 100% | 100% | 100% | 100% | 100% | 99% | 94% | 100% | 100% | 62% | 90% | 24% | 99% | 40% | 45% | 5% | 48% | 100% | 98% | 5% | 8% | 93% | 100% | 68% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 1.1 | 2.2 | 3.4 | 4.3 | 4.6 | 4.2 | 3.2 | 2 | 1 | 0.3 | 0 | 0 | 0 | 0 |
Weather in Thunder Bay tomorrow
The weather in Thunder Bay tomorrow is expected to be noticeably warmer than usual, with a forecast temperature of 19 °C, compared to an average of 16 °C for 12th of September in recent years.
temperatures
19 °C
rain
9.7 mm
wind
23 km/h
UV
Moderate
Thunder Bay daylight overview ☀️
Tomorrow in Thunder Bay, The sun rises at 07:29 and sets at 20:16, giving a total daylight duration of 12 hours and 47 minutes.
Quick links
More Thunder Bay weather pages
What to wear tomorrow in Thunder Bay? clothing recommendations
Stay comfortably stylish - your tailored guide for tomorrow's Thunder Bay forecast.
Long-sleeve shirt
Long pant
Closed-toe shoes
Light jacket
Umbrella
The weather tomorrow in Thunder Bay - FAQ
What is the maximum temperature for tomorrow in Thunder Bay?
The maximum temperature for tomorrow in Thunder Bay is expected to be 19° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain tomorrow in Thunder Bay? 🌧️
Yes, there is a 78% chance of rain in Thunder Bay tomorrow. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed tomorrow in Thunder Bay? 🌀
The wind in Thunder Bay is expected to blow at 23 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Thunder Bay tomorrow?
Given the forecast of 19 °C with a 78% chance of rain, we advise checking our "What to wear tomorrow" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Thunder Bay tomorrow.
What is the sunrise and sunset time for Thunder Bay tomorrow?
The sun is expected to rise at 07:29 and set at 20:16 in Thunder Bay.
How accurate is the weather forecast Thunder Bay tomorrow? ✅
Thunder Bay weather forecast for tomorrow is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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