Enjoy a Warm and Sunny Midweek in Thunder Bay

Thunder Bay will bask in sunny skies today, with a high reaching 23°C. Winds from the south will pick up to 20 km/h, gusting to 40 km/h in the afternoon. The UV index is 6 (high), so grab some sunscreen! Tonight, expect just a few clouds and temperatures cooling down to 13°C​.

Showers Expected as the Week Progresses

Wednesday, September 4, continues the sunny streak with a warm high of 25°C. However, there’s a 30% chance of showers overnight, with lows dipping to 15°C. By Thursday, September 5, showers become more likely, with a 60% chance of rain and a high of 23°C. Showers may linger into Friday, with cooler temperatures of 13°C​(Environment Canada).

The weekend looks brighter, though: Saturday will bring a mix of sun and cloud with a high of 14°C, and Sunday warms up to 18°C under partly cloudy skies​.

Wardrobe Tips

With warm sunny days ahead, light and breathable clothing is ideal. Keep a jacket and umbrella handy, as showers are likely from Thursday into Friday, followed by cooler weekend temperatures.

Fun Fact: Thunder Bay’s Record Heat

Did you know the highest recorded temperature in Thunder Bay for September is 33.9°C? While we won’t be reaching those heights this week, Thunder Bay’s sunny weather is perfect for outdoor fun!