THUNDER BAY – WEATHER – Thunder Bay is in the “after the storm” zone this morning: light snow and drifting snow at daybreak, but with pressure rising—a classic signal that the worst of the system is moving off. The trade-off is the cold: wind chills in the -20s will linger today, before a clear, sharp night and another round of snow on Thursday.

As of 6:54 AM EST, no weather alerts are in effect for the City of Thunder Bay.

Today’s Weather Overview

Current Conditions

At 6:00 AM EST (Thunder Bay Airport):

• Temperature: -14.8°C (reported as -15°C)

• Condition: Light snow and drifting snow

• Wind: WNW 21 km/h, gusts 30 km/h

• Wind chill: -24

• Pressure: 100.1 kPa and rising

• Humidity: 66%

• Visibility: 24 km

How Today Plays Out

Environment Canada expects periods of light snow ending early this morning, then a mix of sun and cloud with a 30% chance of flurries. Winds stay northwest 20 km/h with a high near -11°C. Wind chill improves a bit through the day: about -23 this morning to -17 this afternoon.

Expected Conditions (Next Three Days)

Tonight (Wed night): Clear, becoming partly cloudy after midnight. Low -19°C with wind chill near -26 overnight.

Thursday, Feb. 26: Periods of snow, around 2 cm. High -5°C (feels like -21 in the morning, improving to about -9 in the afternoon).

Friday, Feb. 27: Cloudy with a 60% chance of snow and a milder high near +2°C. Friday night turns windy with a low near -21°C and a 40% chance of flurries.

Wardrobe Recommendations

• This morning: Dress for a true Lakehead bite—parka + warm mid-layer, insulated boots, and mitts. With drifting snow, a neck warmer helps a lot.

• This afternoon: You can ease off one layer if you’re active, but keep wind protection—-17 wind chill still steals heat fast.

• Tonight: Go warmer than you think you need. -19°C plus wind chill can turn a quick errand into a numb-fingers situation.

• Thursday: Add a water-resistant outer layer (or shell) for light snow, and footwear with good grip.

Weather Trivia

Today’s “typical” Thunder Bay late-February temperatures (normals) are about -3°C for the daytime high and -14°C for the overnight low—so today’s forecast high of -11°C is running colder than normal. Sunrise is 7:47 AM and sunset is 6:34 PM (18:34).

Summary: Thunder Bay weather for Feb. 25, 2026: light snow and drifting snow early with -15°C and wind chill -24, improving to a mix of sun and cloud and a chance of flurries. Clear, colder night near -19°C, then periods of snow Thursday and a milder +2°C chance-of-snow Friday.