THUNDER BAY — Wednesday, December 24, 2025 (6:00 AM EST) — It’s a cold, cloudy start to Christmas Eve in Thunder Bay. At Thunder Bay Airport, the temperature sits at -14°C with a wind chill of -17. Winds are light from the NNW at 4 km/h, visibility is 24 km, and barometric pressure is 102.9 kPa and rising.
Today: Cloudy with a Small Flurry Chance
Cloud cover hangs on through the day, with a 30% chance of flurries early this morning. Temperatures will climb noticeably compared to the early morning cold, reaching a daytime high near -4°C. Wind chill improves from around -19 this morning to about -6 this afternoon.
Tonight: Colder Again
Clouds remain in place tonight with a low near -13°C. Wind chill values are expected to hover around -10 this eveningand dip near -16 overnight, so it will feel colder than the thermometer suggests.
Christmas Day: Quiet, Then Snow at Night
Christmas Day stays mainly cloudy with a 30% chance of flurries late in the afternoon. Winds are expected to shift east at 20 km/h, gusting to 40, adding a sharper bite to the air. The high is forecast near -5°C.
By Christmas Night, conditions change: snow is expected to develop overnight with a low near -6°C—setting the stage for a more active weather pattern heading into Friday.
Friday into the Weekend: Snow, Then A Mixed Bag
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Friday: Snow continues with temperatures near 0°C.
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Friday Night: A 30% chance of flurries, low around -4°C.
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Saturday: 40% chance of flurries, high near +1°C.
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Saturday Night: 60% chance of snow, low near -9°C.
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Sunday: 60% chance of snow, high near -10°C, then a 40% chance of flurries Sunday night with lows near -17°C.
Travel Note
While today’s weather is fairly steady, snow arriving Christmas Night and continuing Friday could impact holiday travel, especially as temperatures hover near the freezing mark late week—conditions that often lead to changing road surfaces.
The Last Word: Thunder Bay starts Christmas Eve at -14°C with a wind chill of -17 under cloudy skies. A few flurries are possible today, with snow developing Christmas night and continuing into Friday.
Stay with NetNewsLedger for updated forecasts and any winter weather advisories as the Christmas system moves in.
