Clear and crisp this morning, but warming fast — a golden autumn day awaitsThunder Bay is off to a cool and calm start this Sunday morning, with clear skies, light winds, and a brisk 5°C on the thermometer. But don’t let the chill fool you — a sunny and warm fall day is on the way, with highs near 24°C and a light southwest breeze. Today’s Weather OverviewCurrent ConditionsAs of 6:00 AM EDT at Thunder Bay Airport, the temperature is 4.5°C, with a dew point of 3.5°C, creating a humidity level of 93%—perfect for a crisp fall morning feel. Light winds from the west-southwest at 4 km/h contribute to calm, cool conditions. High of 23°C — a beautiful fall day.