Current Conditions (8:00 PM EST, Wed Nov 19)
At Thunder Bay Airport it’s 2.4°C under light rain showers. Pressure 101.8 kPa (falling), humidity 91%, with a southwest wind at 13 km/h and 24 km visibility. After Wednesday’s snow, the next couple of days lean milder—but brief, with cooler air sliding back for the weekend.
Thursday (Nov 20)
Periods of rain end in the morning, then cloudy with a 40% chance of drizzle. Fog patches dissipate in the morning. Wind becomes west 20 km/h early afternoon. High 7°C (UV 1 – low).
Thursday night: Partly cloudy, becoming cloudy after midnight. Wind west 20 km/h becoming light early evening. Low –3°C, wind chill –7 overnight—watch for refreeze on bridges and shaded streets.
Friday (Nov 21)
A mix of sun and cloud with a 30% chance of flurries. High +2°C.
Friday night: Cloudy periods, low –9°C—a crisp night.
Saturday (Nov 22)
A mix of sun and cloud with a 30% chance of rain showers or flurries as weak disturbances pass. High +3°C.
Saturday night: Clear, low –2°C.
What to Wear
Go with layers: a long-sleeve base, light sweater, and a waterproof/windproof shell for tonight’s rain and Thursday drizzle. Add gloves and a toque for the cooler evenings. Grippy, waterproof footwear will help with wet leaves tonight and icy patches late Thursday.
Driving & Outdoor Tips
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Fog overnight: use low beams, slow down, and leave space.
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Refreeze Thursday night: expect black ice on overpasses, side streets, and parking lots.
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Secure light decorations/signage—westerly breeze Thursday afternoon will tug at them.
Lakehead Weather Trivia
On mild, moist southwest flows after fresh snow, advection fog can form as warm air passes over colder ground—why it can feel damp and murky even as temps sit a few degrees above zero.
