Thunder Bay is under cloudy skies late this morning, and the calm conditions won’t last. A cold front is pushing through Northwestern Ontario, and very strong westerly winds are expected to ramp up late this afternoon into this evening. With a bit of loose snow around, those winds can quickly create blowing snow and sudden drops in visibility, especially in open areas and along exposed roads.

Today’s Weather Overview

Current Conditions (Observed 10:00 AM EST, Friday Feb. 27, 2026)

Thunder Bay is cloudy with slightly improved warmth compared to early morning.

• Temperature: -7.3°C (19°F)

• Wind: North 2 km/h (light right now)

• Wind Chill: -8

• Humidity: 82%

• Dew Point: -9.8°C (14°F)

• Pressure: 100.2 kPa and falling (a sign the pattern remains active)

• Visibility: 16 km (good now, but may deteriorate later with blowing snow)

Weather Alert Update: Wind Warning (Moderate Impact, High Confidence)

A Yellow Wind Warning is in effect for City of Thunder Bay.

• What: Strong westerly winds with gusts up to 90 km/h

• When: Late this afternoon into this evening, easing near midnight

• Main risks:

  • Blowing snow and reduced visibility in spots

  • Loose objects tossed and potential minor utility outages

  • Risk of injury from flying or falling debris

Safety note: Bring in or secure anything loose outdoors, and if you’re travelling later today, be ready for fast-changing visibility.

Today (Friday)

• Sky: Mainly cloudy

• Flurries: 60% chance of flurries this afternoon

• High: +2°C (36°F)

• Wind: West 20 km/h gusting 40 this morning, increasing to 50 km/h gusting 80 early this afternoon (and potentially higher gusts later under the wind warning)

• UV Index: 1 (Low)

Tomorrow’s Forecast

Expected Conditions (Next Three Days)

Tonight (Friday Night)

• Sky: Partly cloudy

• Flurries: 30% chance this evening

• Local blowing snow: Possible this evening

• Wind: West 50 gusting 80, becoming northwest 30 gusting 50 late evening

• Low: -19°C (-2°F)

• Wind Chill: near -28 overnight — risk of frostbite

Saturday, Feb. 28

• Day: Mainly sunny

  • High: -10°C (14°F)

  • Wind: NW 20 km/h gusting 40, becoming light in the morning

  • Wind Chill: near -29 in the morning and -15 in the afternoon (frostbite risk early)

• Night: Clear

  • Low: -28°C (-18°F)

Sunday, March 1

• Day: Sunny

  • High: -10°C (14°F)

• Night: Cloudy with 30% chance of flurries

  • Low: -18°C (0°F)

Monday, March 2

• Day: Cloudy with 40% chance of flurries

  • High: -1°C (30°F)

• Night: Cloudy with 40% chance of flurries

  • Low: -8°C (18°F)

Wardrobe Recommendations

• Late today (wind ramps up): Wear a windproof outer layer. Add a scarf/neck warmer and snug hat—gusts can cut through insulation fast.

• If you’ll be out during flurries/blowing snow: Consider eye protection (glasses) and cover exposed skin.

• Tonight into Saturday morning: Dress for wind chills near -28 to -29. Go with insulated boots, warm mitts, a face covering, and layers (base layer + warm mid-layer + windproof shell). Limit time outdoors to reduce frostbite risk.

Weather Trivia

Blowing snow can be more disruptive than heavy snowfall. In strong winds, even a small amount of fresh, dry snow can get lofted and pushed across roads, creating whiteout-like bursts where visibility drops suddenly—especially near open fields, shoreline areas, and highway cutlines.