Thunder Bay faces snow, gusty winds, and wind chills near -19°C. A slight warm-up arrives Thursday, but bitter cold returns for the weekend. Stay bundled up!
Thunder Bay is off to a cool and cloudy start, with temperatures sitting at -6°C. The wind, however, is making it feel much colder—blowing from the north-northeast at 16 km/h, gusting up to 34 km/h, it’s producing a wind chill of -12°C.
Humidity is at 54%, and the barometric pressure is 100.5 kPa and falling, signalling an active weather pattern. Visibility remains good at 24 km, but that will change as snow moves in.
Today: Snow & Gusty Winds Keep Things Cold
Periods of snow will continue throughout the day, with accumulations of up to 5 cm expected. North winds at 30 km/h, gusting to 50 km/h, will make it feel much colder, with a wind chill of -16°C.
The temperature will hover near -5°C, but it won’t feel anywhere near that warm thanks to the gusty winds. The UV index remains low at 1, meaning no need for sunglasses—just a warm hat and gloves!
Tonight: Flurries & Bitter Cold Wind Chills
Expect partly cloudy skies, with a 40% chance of flurries in the evening. Winds will stay strong from the north at 30 km/h, gusting to 50 km/h, before calming after midnight.
The temperature will drop to -13°C, but wind chills will make it feel like -18°C overnight. A warm blanket and an extra cup of tea might be necessary!
Thursday, March 6: A Slight Warm-Up but Strong Winds Return
Thursday morning will start with increasing cloudiness and a 40% chance of flurries by late afternoon. The real story will be the wind, which will pick up to northwest 30 km/h, gusting to 60 km/h by the morning.
Temperatures will finally reach 0°C, but the morning wind chill will be a frigid -19°C, improving slightly in the afternoon.
Thursday Night: Cloudy periods continue, with a 30% chance of flurries and a low of -14°C.
Friday, March 7: Clear & Cold
Friday will be sunny but crisp, with a high of -5°C.
Friday Night: The coldest night in the forecast, with clear skies and temperatures plunging to -21°C.
Saturday, March 8: Sunny & Slightly Warmer
The weekend kicks off with plenty of sunshine, and a high of -3°C—a small but welcome improvement!
Saturday Night: Cloudy periods move in, with a low of -11°C.
Sunday, March 9: A Mix of Sun & Cloud with a Chance of Flurries
Sunday will bring a 30% chance of flurries and a high of -2°C, showing signs that winter may finally be loosening its grip.
What to Wear?
With wind chills dipping as low as -19°C on Thursday morning, layers are key. A warm winter coat, hat, gloves, and insulated boots are a must, especially with strong winds making it feel colder than the thermometer suggests.
A scarf or face covering will help against wind gusts, particularly Thursday when they ramp up again.
Weather Trivia: Thunder Bay’s Wild March Weather Swings
Did you know that Thunder Bay holds the record for one of the biggest March temperature swings in Ontario? In March 2012, Thunder Bay hit a record-breaking 26°C, while in 1965, it plunged to -39.4°C—talk about unpredictable spring weather!
Final Thoughts
Thunder Bay will see snow, gusty winds, and bitter cold today and tonight, with wind chills dropping as low as -19°C Thursday morning. A slight warm-up to 0°C arrives Thursday, but the cold will return Friday night with temperatures plunging to -21°C. Winter isn’t quite done with us yet! Stay warm, and drive safely in the snow.
