Thunder Bay
January
Weather in Thunder Bay for January 2026
Your guide to Thunder Bay weather in January - trends and predictions
The climate of Thunder Bay in January is quite snowy, averaging 15 snowy days.
According to Thunder Bay snow forecast for January 2026, no snow is expected until the end of the month.Until now, January 2026 in Thunder Bay is slightly cooler than the historical average by -1.5 °C.
The forecast for the next days in Thunder Bay predicts temperatures to be around -11 °C, close to the historical average.
In general, the average temperature in Thunder Bay at the beginning of January is -5.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of -8.9 °C by the end of January.
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Snow Forecast ❄️
Temperatures
More
16
Dry days
0
Rainy days
15
Snow days
-7°/-13°
Temperatures
18 km/h
Avg max wind
80 %
Avg humidity
Thunder Bay Weather January
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Temperatures trend during January in Thunder Bay
See the weather trend as well as the moving average line
January weather in Thunder Bay day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Jan. |  Overcast | -5° /-12° | 0 mm | 0 cm | |
| 2 Jan. |  Light snow | -5° /-11° | 0 mm | 0 cm | |
| 3 Jan. | Overcast | -7° /-13° | 1.3 mm | 1 cm | |
| 4 Jan. | Overcast | -9° /-15° | 0.5 mm | 0.4 cm | |
| 5 Jan. | Light snow | -4° /-11° | 5.1 mm | 3.7 cm | |
| 6 Jan. |  Moderate or heavy snow showers | -3° /-8° | 2.9 mm | 2.4 cm | |
| 7 Jan. |  Sunny | -4° /-12° | 0.3 mm | 0.2 cm | |
| 8 Jan. |  Moderate snow | -5° /-13° | 0.8 mm | 0.6 cm | |
| 9 Jan. | Overcast | -1° /-8° | 2 mm | 1.7 cm | |
| 10 Jan. | Overcast | -3° /-9° | 7 mm | 4.5 cm | |
| 11 Jan. |  Light freezing rain | -5° /-11° | 0.7 mm | 0 cm | |
| 12 Jan. | Overcast | -3° /-10° | 1.4 mm | 1 cm | |
| 13 Jan. | Moderate snow | -8° /-14° | 5.5 mm | 3.6 cm | |
| 14 Jan. | Overcast | -9° /-17° | 0 mm | 0 cm | |
| 15 Jan. | Overcast | -8° /-15° | 0 mm | 0 cm | |
| 16 Jan. | Overcast | -5° /-10° | 1.8 mm | 1.2 cm | |
| 17 Jan. | Overcast | -6° /-13° | 1.7 mm | 0.6 cm | |
| 18 Jan. |  Partly cloudy | -11° /-18° | 0 mm | 0 cm | |
| 19 Jan. | Overcast | -14° /-21° | 0.2 mm | 0 cm | |
| 20 Jan. | Overcast | -13° /-22° | 0 mm | 0 cm | |
| 21 Jan. | Overcast | -9° /-18° | 0 mm | 0 cm | |
| 22 Jan. |  Cloudy | -8° /-15° | 0.5 mm | 0.4 cm | |
| 23 Jan. |  Patchy moderate snow | -10° /-19° | 0.6 mm | 0.3 cm | |
| 24 Jan. | Overcast | -8° /-17° | 0.1 mm | 0 cm | |
| 25 Jan. | Light freezing rain | -6° /-13° | 1.2 mm | 0.6 cm | |
| 26 Jan. | Overcast | -6° /-15° | 0 mm | 0 cm | |
| 27 Jan. | Patchy moderate snow | -4° /-13° | 0.8 mm | 0.4 cm | |
| 28 Jan. | Cloudy | -16° /-24° | 0.1 mm | 0 cm | |
| 29 Jan. | Partly cloudy | -15° /-27° | 0 mm | 0 cm | |
| 30 Jan. | Partly cloudy | -10° /-22° | 0 mm | 0 cm | |
| 31 Jan. | Sunny | -5° /-19° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Thunder Bay in January 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 January - FAQ
What are the expected maximum and minimum temperatures in Thunder Bay during January?
Brace for cold days with temperatures not exceeding -7° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Thunder Bay during January?
In January, Thunder Bay can expect light to moderate rainfall, totaling 31 mm across approximately 0 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Thunder Bay in January 2026?
Thunder Bay experiences an average snowfall of 20.8467 cm during January, occurring over 15 days.
What are the typical wind conditions in Thunder Bay during January?
The average wind speed in Thunder Bay during January is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
Thunder Bay snow forecast January 2026
Track daily snowfall levels and discover Thunder Bay’s snowy potential this January ❄️
On average, Thunder Bay sees 15 snowy days during January, with approximately 20.8 cm of total snowfall.
January rainfall patterns in Thunder Bay
Explore the daily rainfall trends and prepare for Thunder Bays January weather 💧
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