Thunder Bay – Weather Desk – Thunder Bay is waking up to a clear, cold morning with a stiff west wind making it feel much colder than the thermometer suggests.

Your kittens will need mittens this morning. That brisk breeze is also going to chill your cheeks so a scarf will be worth putting on.

Sunshine dominates today, but the cold remains the headline—wind chills in the -30 range this morning bring a frostbite risk.

Clouds increase tonight, and a more active stretch arrives Saturday with periods of snow (2–4 cm) before colder, clearer weather returns Saturday night.

Today’s Weather Overview

Current Conditions (Thunder Bay Airport)

At 6:00 AM EST, Thunder Bay Airport reported:

• Clear

• Temperature: -19.6°C (about -20°C)

• Wind: W 21 km/h, gusting 35 km/h

• Wind chill: -30

• Humidity: 61%

• Visibility: 24 km

• Pressure: 100.9 kPa and rising

Today (Friday, Jan. 2)

• Sunny

• Wind becoming west 30 km/h gusting to 50 this morning

• High: -13°C

• Wind chill: -31 this morning, improving to around -22 this afternoon

• Risk: Frostbite this morning, especially if skin is exposed in the wind

Tomorrow’s Forecast

Expected Conditions (Next Three Days)

Tonight (Friday night)

• A few clouds, then increasing cloudiness

• 40% chance of flurries overnight

• Wind west 20 km/h, becoming light early evening

• Low: -18°C

• Wind chill: near -25

Saturday, Jan. 3

• Periods of snow

• Snow amount: 2 to 4 cm

• Wind becoming west 20 km/h in the morning

• High: -11°C

• Wind chill: about -24 in the morning, near -16 in the afternoon

• Saturday night: Clear, low -23°C

Sunday, Jan. 4

• Increasing cloudiness

• High: -9°C

• Sunday night: Snow, low -12°C

Wardrobe Recommendations

• This morning (wind chill near -31): Windproof outer layer, warm base layer, thick mitts, toque, and a neck warmer/face covering.

• This afternoon: Sunshine helps visibility, not warmth—keep the wind-blocking layer.

• Saturday snow: Boots with good traction—fresh snow can hide slick spots on sidewalks and parking lots.

Weather Trivia

A “sunny” winter day can still be hazardous when winds are gusty. Wind chill measures how quickly your body loses heat—so even modest wind speeds can push conditions into frostbite-risk territory.

Weather Summary for the Weekend

Thunder Bay weather for Friday, Jan. 2, 2026: clear and -20°C this morning with wind chill near -30 and gusty west winds. Sunny today with a high near -13°C, then flurries possible tonight. Periods of snow Saturday (2–4 cm) followed by clear, colder weather Saturday night.