THUNDER BAY – WEATHER – Thunder Bay is right back in the thick of winter this Thursday, with snow falling this morning and visibility already reduced. Environment Canada’s Yellow Winter Storm Warning remains in effect for the City of Thunder Bay, with another 5 to 10 cm of snow expected today, plus local blowing snow as winds gust near 60 km/h—especially close to the Lake Superior shoreline.

Conditions are expected to improve later this afternoon, but travel may be hazardous until then.

Today’s Weather Overview

Current Conditions

At 7:00 AM EST, Thunder Bay is reporting light snow with the temperature at -5.7°C. Winds are ENE 25 km/h, pushing the wind chill to -13. Humidity is 88%, pressure is 100.8 kPa and rising, and visibility has dropped to just 1.6 km—a clear sign that snow and blowing snow are already impacting the city.

Winter Storm Warning

What: Additional 5 to 10 cm today, reduced visibility in blowing snow, and winds gusting up to 60 km/h.
When: Continuing into this afternoon.
Where the worst hits: Blowing snow may be most noticeable near Lake Superior.
Impacts: Difficult roads and walkways, sudden near-zero visibility at times, possible delays or closures.

Today (Thursday)

Expect snow and local blowing snow through the day.

• Snowfall: 5 to 10 cm

• Wind: E 30 km/h gusting to 60

• High: -4°C

• Wind chill: -14 this morning, improving to -8 this afternoon

Expected Conditions (Next 3 Days)

Tonight (Thursday night)

Snow keeps going, but winds ease.

• Sky/Precip: Periods of snow

• Amount: ~5 cm

• Wind: Up to 15 km/h

• Low: -6°C

• Wind chill: near -10

Friday, February 20

Still snowy, but a bit milder in temperature.

• Sky/Precip: Periods of snow

• Amount: ~5 cm

• Wind: Becoming north 20 km/h near noon

• High: -2°C

• Wind chill: near -10

• Friday night: Cloudy with a 60% chance of flurries, low -11°C

Saturday, February 21

• Day: 40% chance of flurries, high -6°C

• Night: 30% chance of flurries, low -15°C

Trend note: Sunday night is where the colder air really flexes again, with lows trending toward -23°C under cloudy periods.

Wardrobe Recommendations

Today is “storm-ready” clothing:

• A warm winter coat with a wind-blocking outer layer

• Insulated boots and thick socks (snowy sidewalks will be messy and slick)

• Mittens over gloves (better warmth in wind)

• A scarf/neck gaiter for blowing snow

• If you’re shovelling: goggles or glasses help when snow is blowing sideways

Driving today? Keep the washer fluid topped up, brush off lights often, and give yourself extra braking distance.

Weather Trivia

Thunder Bay’s position near Lake Superior can intensify blowing snow impacts. Even when snowfall isn’t extreme, strong winds can lift loose snow—creating sudden visibility drops that feel like whiteouts, especially along exposed shorelines and open roads.

Summary

Thunder Bay weather for Thursday, February 19, 2026: Yellow Winter Storm Warning continues with snow and local blowing snow. Another 5–10 cm expected today with east winds gusting up to 60 km/h and reduced visibility. Periods of snow continue tonight and Friday before flurries and colder air return this weekend.