Thunder Bay – Weather Desk – Thunder Bay starts Friday under partly cloudy skies and intense cold, even though there are no weather alerts in effect for the City of Thunder Bay at this time. Just to the west, yellow cold alerts are posted—so while the city isn’t under an alert banner, this is still serious winter weather.

In other words: it’s a two-pairs-of-mittens-on-your-kittens kind of morning.

Today’s Weather Overview

Current Conditions

Observed at 5:00 AM EST (Friday, January 30, 2026):

• Temperature: -26.6°C

• Condition: Partly Cloudy

• Wind: WSW 9 km/h

• Wind Chill: -35

• Humidity: 75%

• Dew Point: -29.7°C

• Pressure: 103.9 kPa, rising

• Visibility: 24 km

That rising pressure supports the brighter periods expected today, but the cold is doing the heavy lifting in this forecast.

Today (Friday)

Forecast issued 5:30 AM EST

• Early: Clear

• Later: A mix of sun and cloud with a 40% chance of flurries this afternoon

• High: -11°C

• Wind: Up to 15 km/h

• Wind Chill: -30 this morning, improving to -18 this afternoon

• UV Index: 1 (Low)

• Main risk: Frostbite remains possible—especially this morning.

Expected Conditions (Next 3 Days)

Tonight (Friday night)

• Sky: Clear

• Wind: Northwest 20 km/h, becoming light late this evening

• Low: -20°C

• Wind Chill: -20 this evening, near -28 overnight

• Risk: Frostbite risk continues overnight.

Saturday, January 31

• Sky: Sunny, becoming a mix of sun and cloud late afternoon

• High: -9°C

• Wind: Up to 15 km/h

• Wind Chill: -28 in the morning, -12 in the afternoon

• Night: Cloudy periods, low -11°C

Sunday, February 1

• Sky: Cloudy with a 60% chance of snow

• High: -5°C

• Night: Cloudy periods with a 40% chance of flurries, low -17°C

Wardrobe Recommendations

This is still full winter armour weather:

• Base layer + warm mid-layer + windproof parka

• Mitts (or two layers of mitts for kids)—and yes, pets should be kept warm too

• Face covering (neck gaiter/balaclava) for wind chills in the -30s

• Insulated boots with good grip—packed snow and cold can hide icy patches

• If you’re driving outside the city: bring blankets, charger, booster cables, and keep the tank above half.

Weather Trivia

A rising barometer like today’s often signals more stable weather, but it doesn’t guarantee warmth. In winter, high pressure frequently brings clearer skies—which can actually allow temperatures to drop sharply overnight.

Summary

Thunder Bay weather forecast for Friday, January 30, 2026: partly cloudy and bitterly cold near -27°C with wind chill -35. Mix of sun and cloud with a 40% chance of flurries this afternoon, then clear tonight. Milder daytime trend this weekend with snow chances Sunday.