Climate almanac
Thunder Bay
Ontario, Canada · 48.38°, -89.25°
What is the weather like in Thunder Bay in October?
In October, Thunder Bay is typically 50°F (10°C) during the day and 39°F (4°C) at night. The month brings about 2.6 in (66 mm) of precipitation in total. Snowfall averages about 1.4 in (35 mm) over the month.
- Average high50°F (10°C)
- Average low39°F (4°C)
- Precipitation2.6 in (66 mm)
- Clear or mostly clear days5
- Snowfall1.4 in (35 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)