Thunder Bay’s October 23–25 weekend forecast brings mild temperatures, a Saturday shower and thunderstorm risk

Thunder Bay Weekend Weather: Saturday Warmth and Shower Risk Before a Windy Sunday Cooldown
Friday, October 23, to Sunday, October 25, 2026
THUNDER BAY – WEATHER – A mild start to the weekend will give way to a cooler Sunday across Thunder Bay and surrounding communities. Saturday brings an afternoon shower chance and a risk of a thunderstorm.
Friday morning conditions
At 7 a.m. EDT Friday, Thunder Bay Airport reported mist, a temperature of 7.4°C and visibility of two kilometres. Humidity