Thunder Bay Weather: Windy Weekend with Showers Possible Through Monday

THUNDER BAY — WEATHER — Saturday, September 12, 2026 — Thunder Bay begins the weekend under mainly cloudy skies, with showers possible and gusty west winds developing.
Saturday will be the warmest day of the three-day forecast. Cooler air arrives Sunday, while the chance of showers continues into Monday.
The weather is looking good for the Wake the Giant festival at Marina Park as well as other events including the Downtown Throwdown along Red River Road in the Waterfront Distr