Thunder Bay
April
Weather in Thunder Bay for April 2027
Your guide to Thunder Bay weather in April - trends and predictions
Thunder Bay typically experiences moderate snowfall in April, with an average of 8 snowy days.
In general, the average temperature in Thunder Bay at the beginning of April is 0.5 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 5.2 °C by the end of April.
Is April a good time to visit Thunder Bay? check out the best time to travel to Thunder Bay page.
✨ Is April a good time to visit Thunder Bay? – Ask the AI Weatherman
Snow Forecast ❄️
Temperatures
More
16
Dry days
6
Rainy days
8
Snow days
4°/-2°
Temperatures
20 km/h
Avg max wind
82 %
Avg humidity
Thunder Bay Weather April
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Temperatures trend during April in Thunder Bay
See the weather trend as well as the moving average line
April weather in Thunder Bay day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Apr. |  Overcast | 0° /-8° | 0 mm | 0 cm | |
| 2 Apr. |  Light snow | -1° /-4° | 37 mm | 3.4 cm | |
| 3 Apr. |  Moderate snow | 2° /-4° | 11.3 mm | 5.1 cm | |
| 4 Apr. | Light snow | 0° /-4° | 7.4 mm | 1.9 cm | |
| 5 Apr. |  Moderate or heavy snow showers | 2° /-3° | 6.8 mm | 5 cm | |
| 6 Apr. |  Light freezing rain | 0° /-5° | 0.1 mm | 0 cm | |
| 7 Apr. | Overcast | 1° /-8° | 0 mm | 0 cm | |
| 8 Apr. | Light snow | 1° /-6° | 7.8 mm | 3.4 cm | |
| 9 Apr. | Overcast | 4° /-1° | 0.7 mm | 0.3 cm | |
| 10 Apr. | Overcast | 7° /-1° | 0.5 mm | 0 cm | |
| 11 Apr. |  Mist | 7° /-1° | 0.1 mm | 0 cm | |
| 12 Apr. |  Moderate rain | 6° /1° | 16.1 mm | 0 cm | |
| 13 Apr. |  Light rain | 5° /2° | 2.7 mm | 0 cm | |
| 14 Apr. | Light snow | 5° /1° | 10.8 mm | 2.3 cm | |
| 15 Apr. | Light rain | 7° /1° | 3.1 mm | 0 cm | |
| 16 Apr. | Light snow | 5° /0° | 3.9 mm | 3.1 cm | |
| 17 Apr. | Moderate or heavy snow showers | 3° /-1° | 17.2 mm | 6.6 cm | |
| 18 Apr. | Light freezing rain | 3° /-1° | 8.2 mm | 2.1 cm | |
| 19 Apr. | Overcast | 2° /-2° | 0.2 mm | 0 cm | |
| 20 Apr. | Moderate or heavy snow showers | 4° /-3° | 6.2 mm | 5 cm | |
| 21 Apr. |  Patchy moderate snow | 5° /-1° | 12.3 mm | 6.3 cm | |
| 22 Apr. |  Patchy rain possible | 6° /0° | 1.3 mm | 0.3 cm | |
| 23 Apr. | Light snow | 5° /-1° | 5.2 mm | 1.1 cm | |
| 24 Apr. | Light rain | 4° /-2° | 5.3 mm | 0 cm | |
| 25 Apr. | Mist | 8° /0° | 0 mm | 0 cm | |
| 26 Apr. | Patchy rain possible | 7° /0° | 1.9 mm | 0 cm | |
| 27 Apr. | Moderate rain | 5° /0° | 16.9 mm | 2.4 cm | |
| 28 Apr. | Moderate rain | 6° /1° | 15.2 mm | 0 cm | |
| 29 Apr. | Moderate or heavy snow showers | 3° /0° | 15.3 mm | 5.2 cm | |
| 30 Apr. | Light snow | 5° /0° | 5 mm | 0.8 cm | |
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Important Notice
Our weather forecast for Thunder Bay in April 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 April - FAQ
What are the expected maximum and minimum temperatures in Thunder Bay during April?
Brace for cold days with temperatures not exceeding 4° 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 April?
Significant rainfall exceeding 218.5 mm is expected in Thunder Bay during April, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Thunder Bay in April 2027?
Thunder Bay experiences an average snowfall of 54.1 cm during April, occurring over 8 days.
What are the typical wind conditions in Thunder Bay during April?
The average wind speed in Thunder Bay during April is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
Thunder Bay snow forecast April 2027
Track daily snowfall levels and discover Thunder Bay’s snowy potential this April ❄️
On average, Thunder Bay sees 8 snowy days during April, with approximately 54.1 cm of total snowfall.
April rainfall patterns in Thunder Bay
Explore the daily rainfall trends and prepare for Thunder Bays April weather 💧
Typically, Thunder Bay has 6 rainy days in April with a total of 218.5 mm of rainfall.
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