Thunder Bay – WEATHER DESK – Sioux Lookout is starting Friday under clear skies and deep cold, but the calm won’t last. Clouds increase later today and periods of snow arrive after midnight, continuing into Saturday morning before tapering. The bigger story remains the cold: wind chills near -35 this morning mean frostbite risk if you’re outside too long.

Today’s Weather Overview

Current Conditions (Sioux Lookout Airport)

At 5:00 AM CST, Sioux Lookout Airport reported:

• Clear

• Temperature: -23.8°C

• Wind: WNW 11 km/h

• Wind chill: -32

• Humidity: 70%

• Visibility: 24 km

• Pressure: 101.0 kPa and rising

Today (Friday, Jan. 2)

• Clear becoming a mix of sun and cloud this morning

• Wind: West 30 km/h gusting to 50

• High: -17°C

• Wind chill: -35 this morning, near -29 this afternoon

• Main hazard: Risk of frostbite

Tomorrow’s Forecast

Expected Conditions (Next Three Days)

Tonight (Friday night)

• Mainly cloudy

• Periods of snow begin after midnight

• Wind west 30 km/h, becoming light late this evening

• Low: -19°C

• Wind chill: near -30

• Frostbite risk continues

Saturday, Jan. 3

• Periods of snow ending near noon, then mainly cloudy

• Snow amount: 2 to 4 cm

• Wind becomes NW 20 km/h gusting to 40 in the morning

• High: -14°C

• Wind chill: -29 morning, near -23 afternoon

• Saturday night: Clear, low -23°C

Sunday, Jan. 4

• Cloudy with a 60% chance of snow

• High: -13°C

• Sunday night: Snow, low -15°C

Wardrobe Recommendations

• This morning (wind chill near -35): Windproof outer layer, warm base layer, thick mitts, toque, neck warmer/face covering, and insulated boots.

• Tonight into Saturday (snow + cold): Add traction-friendly footwear—light snow can hide icy patches.

• If travelling: Keep a winter kit in the vehicle (blanket, extra gloves, charger/power bank, snacks).

Weather Trivia

A small shift in wind speed can make a big difference in how cold it feels. That’s why Sioux Lookout can have a “sunny” day and still be dangerous—wind chill measures how fast your body loses heat, not just the temperature.

Weekend Weather Overview

Sioux Lookout weather for Friday, Jan. 2, 2026: clear early and -24°C with wind chill near -32. Becoming a mix of sun and cloud today with gusty west winds and frostbite risk. Periods of snow begin after midnight with 2–4 cm possible Saturday morning.