Thunder Bay – WEATHER DESK – Thunder Bay is waking up to freezing fog and a Yellow Fog Advisory, with visibility reduced to around 0.6 km at the airport and near-zero visibility possible in dense pockets.

Conditions should improve later this morning, but fog may linger into the afternoon near the shore of Lake Superior. Temperatures are trending milder today, topping out near +2°C, before dipping below freezing tonight.

Today’s Weather Overview

Current Conditions (Thunder Bay Airport)

As of 7:00 AM EST Thursday, January 8, 2026:

• Condition: Freezing Fog

• Temperature: -5.4°C

• Wind: WSW 5 km/h

• Wind Chill: -8

• Humidity: 95%

• Visibility: 0.6 km

• Pressure: 100.7 kPa and rising

Yellow Advisory: Fog

🟡 Fog Advisory (Impact: Moderate | Confidence: High)

• What: Areas of dense fog with near-zero visibility

• When: This morning

• Note: Improvement expected later this morning, but may linger near Lake Superior shoreline into the afternoon.

Today (Thursday)

• Cloudy

• Fog patches dissipating near noon

• Wind up to 15 km/h

• High: +2°C

• Wind chill: near -9 this morning

• UV Index: 1 (low)

Tomorrow’s Forecast

Expected Conditions (Next Three Days)

Tonight (Thursday night)

• Cloudy

• Wind up to 15 km/h

• Low: -3°C

• Wind chill: near -7 overnight

Friday, January 9

• Cloudy

• Wind NW 20 km/h gusting to 40, becoming light early afternoon

• High: -2°C

• Wind chill: near -9 in the morning, about -4 in the afternoon

• Friday night: Cloudy, low -10°C

Saturday, January 10

• Cloudy with 40% chance of flurries

• High: -7°C

• Saturday night: Cloudy periods, 40% chance of flurries, low -16°C

Wardrobe Recommendations

• This morning (freezing fog): Warm layers plus a wind-resistant outer layer; add reflective gear if walking in low visibility.

• Later today (near +2°C): You may feel the mild-up, but it’ll stay damp—wear waterproof footwear.

• Tonight/Friday: Temperatures drop back below freezing—dress warmer for evening plans and early commutes.

Weather Trivia

Freezing fog can leave a thin coating of frost or glaze on surfaces when supercooled droplets freeze on contact—one reason sidewalks and bridges can get slippery even without steady snowfall.

Weather Summary

Thunder Bay weather for Thursday, Jan. 8, 2026: Yellow Fog Advisory with freezing fog and reduced visibility this morning. Cloudy today with fog patches lifting near noon and a high near +2°C. Cloudy tonight (low -3°C), then colder Friday with gusty northwest winds and a high near -2°C.