Thunder Bay – Weather – At 3:00 AM this morning, Thunder Bay held the title of Ontario’s warmest spot at –2°C — but don’t let that fool you.
A sharp cold front is set to sweep through the region, bringing a rapid temperature drop, gusty winds, and dangerously cold wind chills through Friday night and into the weekend.
This drop in weather is going to make sidewalks difficult to walk. Expect corners on roads to be very slippery as meltwater had nowhere to go and formed puddles that will freeze
Today’s Weather Overview
Current Conditions (As of 3:00 AM EST, Friday, February 6)
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Temperature: –2.0°C
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Condition: Cloudy
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Wind: NNW 26 km/h, gusts up to 50 km/h
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Wind Chill: –9
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Humidity: 71%
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Dew Point: –6.6°C
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Pressure: 100.6 kPa (rising)
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Visibility: 24 km
Expected Conditions (Feb 6–8)
Friday, February 6:
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Morning: Cloudy with a 30% chance of flurries early, transitioning to clearing skies.
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Temperature: Falling to –15°C by morning and holding steady.
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Wind: Northwest 30 km/h, gusting to 60
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Wind Chill: Around –26
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UV Index: 1 (Low)
Friday Night:
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Clear skies
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Wind: NW 20 km/h gusting to 40, becoming light late evening
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Low: –25°C
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Wind Chill: –21 (evening), –29 overnight
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Hazard: Risk of frostbite in under 30 minutes with exposed skin
Saturday, February 7:
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A mix of sun and cloud with a 40% chance of flurries
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High: –13°C
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Night: Cloudy with continued flurry risk
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Low: –13°C
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Sunday, February 8:
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Cloudy with a 40% chance of flurries
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High: –5°C
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Night Low: –12°C
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Wardrobe Recommendations
Expect an Arctic plunge after this morning’s mild air:
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Heavy insulated parka
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Windproof gloves and boots
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Toque and thermal-lined scarf
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Layers are essential to retain body heat
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Face covering recommended due to wind chills below –25°C
Weather Alerts & Advisory
⚠️ Cold Weather Alert in Effect
A significant wind chill event will impact Thunder Bay through Friday night and into early Saturday, with “feels like” values near –30°C.
Hazards:
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Wind Gusts: Up to 60 km/h
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Blowing snow possible in open areas
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Extreme wind chills leading to frostbite risk within 15–30 minutes
Weather Trivia
🌡️ Warmest to Coldest in a Flash
Thunder Bay went from being Ontario’s warmest location at 3 AM to experiencing wind chills near –30°C by nightfall — a swing of over 25 degrees in “feels like” temperature in just 18 hours!
Summary
Thunder Bay’s weather for February 6–8, 2026: From a mild –2°C to bitter cold with –29°C wind chills by night. Gusty northwest winds, flurry chances, and frostbite risk. Full forecast details and safety tips.
Keep warm and safe — and be sure to check on vulnerable neighbours and pets during this deep freeze.
