October 6, 2026: Thunder Bay and Area Three-Day Weather Forecast — Mild Tuesday, Showers Return Midweek

Thunder Bay weather forecast for October 6-8, 2026, including current conditions, three-day forecasts for Thunder Bay, Nipigon and surrounding communities
THUNDER BAY – WEATHER – Tuesday, October 6, 2026 – Thunder Bay and surrounding communities are starting Tuesday on a cool and damp note, but temperatures will climb sharply through the day. The city is headed for a much warmer-than-normal high near 21°C before cooler and more unsettled weather arrives Wednesday and Thursd