Thunder Bay – Weather Desk – Thunder Bay is waking up to freezing fog with very low visibility—the kind of morning where the biggest hazard isn’t heavy snow, but near-zero visibility and slick surfaces if freezing drizzle develops.

Conditions should improve through the day, but light snow and flurries remain possible, and temperatures trend milder by Wednesday and Thursday with highs near 0°C.

Today’s Weather Overview

Current Conditions (Thunder Bay Airport)

As of 5:00 AM EST Tuesday, January 6, 2026:

• Condition: Freezing Fog

• Temperature: -5.3°C

• Wind: Calm

• Humidity: 96%

• Pressure: 100.5 kPa, falling

• Visibility: 0.4 km (very poor)

What this means for the morning commute

• Expect sudden visibility drops—especially near the waterfront, low-lying areas, and open stretches.

• Black ice risk is higher when freezing fog/drizzle is around—bridges and overpasses can be especially tricky.

Today (Tuesday)

• Cloudy

• 40% chance of light snow, changing to 30% chance of flurries near noon

• Risk of freezing drizzle this morning

• Wind up to 15 km/h

• High: -2°C

• Wind chill: near -12 this morning, improving to about -6 this afternoon

Tomorrow’s Forecast

Expected Conditions (Next Three Days)

Tonight

• Cloudy

• Wind up to 15 km/h

• Low: -9°C

• Wind chill: -7 this evening, near -14 overnight

Wednesday, January 7

• A mix of sun and cloud

• Wind up to 15 km/h

• High: 0°C

• Wind chill: near -12 in the morning

• Night: Clear, low -4°C

Thursday, January 8

• A mix of sun and cloud

• High: 0°C

• Night: Cloudy, low -7°C

Wardrobe Recommendations

• Morning: Warm layers plus something wind-resistant; visibility is the issue, so add reflective gear if walking.

• Footwear: Boots with strong tread—freezing drizzle/fog can create slick patches even when roads look “just wet.”

• Driving: Use low-beams (not high beams) in fog, slow down, and increase following distance.

Weather Trivia

Freezing fog happens when fog droplets are supercooled (below 0°C). When they settle on roads, railings, and vehicles, they can form a thin icy coating—often before any snow even starts.

Last Thoughts on Tuesday’s Weather

Thunder Bay weather for Tuesday, Jan. 6, 2026: freezing fog early with visibility down to 0.4 km. Cloudy with a chance of light snow and a risk of freezing drizzle this morning. High -2°C today, then milder midweek with highs near 0°C Wednesday and Thursday.