A Mild and Smoky Start to the Day in Thunder Bay

THUNDER BAY – WEATHER – Thunder Bay begins this Tuesday with mostly cloudy skies and a temperature of 13°C, accompanied by light westerly winds and elevated humidity. A Special Air Quality Statement remains in effect as local smoke continues to drift into the region from ongoing wildfires to the north and northwest. While some relief in the form of mild temperatures is expected, conditions remain unsettled through the day and into the evening.

Today’s Weather Overview

Current Conditions

• Temperature: 13.4°C

• Humidity: 89%

• Wind: W at 12 km/h

• Visibility: 24 km

• Barometric Pressure: 100.4 kPa, rising

• Condition: Mostly Cloudy

• Air Quality: Smoke present; reduced air quality for sensitive groups

Forecast Details

Today – Tuesday, June 10

Expect mainly cloudy skies with a 30% chance of showers through the morning and early afternoon. Wildfire smoke will remain in the atmosphere, contributing to hazy skies and potential air quality concerns, particularly for those with respiratory conditions.

• High: 21°C

• Wind: West 20 km/h

• UV Index: 7 (High) — wear sun protection

Tonight

The sky will remain mainly cloudy with a 40% chance of overnight showers.

• Smoke will persist and visibility may fluctuate.

• Low: 9°C

• Winds: West 20 km/h becoming light after sunset

Tomorrow’s Outlook

Wednesday, June 11

• A mix of sun and cloud with 30% chance of early morning showers.

• Hazy conditions will continue into the afternoon.

• Wind: Becoming west 20 km/h, gusting up to 40 km/h

• High: 20°C

• UV Index: 7 (High)

Tomorrow Night

• Clear skies, cooler air moving in

• Low: 6°C

Extended Forecast

• Thursday, June 12: Sunny skies return, but cooler. High 15°C | Low +4°C

• Friday, June 13: A mix of sun and cloud. High 14°C | Low +5°C

Wardrobe Recommendations

• Today: Lightweight, breathable clothing with a light jacket in case of scattered showers. A mask is advisable if you are sensitive to smoke.

• Tomorrow: Sunglasses and layered wear for the breezy afternoon. Stay hydrated and apply sunscreen due to high UV levels.

• Later This Week: Prepare for cooler mornings—keep a warm sweater or windbreaker handy.

Weather Trivia

Did you know? Thunder Bay often experiences temperature inversions that can trap smoke from distant fires closer to the ground, intensifying air quality issues even when wildfires are hundreds of kilometers away.