Thunder Bay – Weather Desk – Friday may have felt almost spring-like for a few hours (at least by late-January standards), but Saturday is starting with a reminder that winter iwas just teasing us.
Thunder Bay is waking up under mainly clear skies with deep cold in place—this is a “mittens on your kittens” kind of morning. There are no alerts in effect for the city right now, but frostbite risk is still real when wind chills push toward the -30 range.
Current Conditions
At 7:00 AM EST at Thunder Bay Airport, conditions are mainly clear with:
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Temperature: -22.2°C
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Wind: W 7 km/h
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Wind Chill: -28
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Humidity: 82%
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Pressure: 103.7 kPa (falling)
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Visibility: 24 km
Today
Expect a bright start, then cloud builds later:
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Sky: Sunny, increasing cloudiness this afternoon
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Wind: Up to 15 km/h
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High: -9°C
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Wind Chill: about -30 this morning, improving to -12 this afternoon
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UV Index: 1 (Low)
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Risk: Frostbite remains possible this morning.
Expected Weather Conditions
Here’s the next three days, as outlined by Environment Canada:
Tonight (Sat night): Partly cloudy
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Low: -15°C
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Wind Chill: -14 this evening, -21 overnight
Sunday, Feb 1: Snow returns
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Sky: Mainly cloudy; periods of snow beginning near noon
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Amount: around 2 cm
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High: -6°C
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Wind Chill: -20 morning, -12 afternoon
Monday, Feb 2: Brighter again, colder at night
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Day: Sunny, high -8°C
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Night: Clear, low -22°C
Wardrobe Recommendations
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This morning: full winter kit—insulated coat, warm base layer, and a wind-resistant outer layer.
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Hands + face: mitts (or layered mitts), warm hat, and a neck gaiter/balaclava for the wind chill.
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Footwear: insulated boots with traction—cold mornings + afternoon cloud can mean slick patches.
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And yes… if you’ve got little ones (or pets), it’s a “mittens on your kittens” start to the day.
Weather Trivia
Cold snaps often feel worst on clear mornings. With fewer clouds, the ground loses heat more quickly overnight (radiational cooling), which helps drive temperatures down before sunrise—exactly the setup we’ve got this morning in Thunder Bay.
Summary
Thunder Bay weather for Saturday, January 31, 2026: mainly clear and very cold this morning near -22°C with wind chill around -28 to -30. Sunny early with increasing cloud this afternoon, snow returning Sunday (about 2 cm), then sunny again Monday.
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