A Frosty April Morning in Thunder Bay – Watch Your Step!
If you’re stepping out early in Thunder Bay this Saturday, tread carefully—those sidewalks are a bit slick thanks to melting snow from Friday’s sunshine refreezing overnight.
As of 7:00 AM, it’s just above freezing at 0.2°C, but it feels colder, thanks to a west wind blowing at 11 km/h, making for a wind chill near -7°C. Skies are cloudy, humidity sits at 75%, and the visibility is a clear 24 km.
The barometric pressure reads 102.1 kPa and is on the decline, which means the weather is warming up to do… something.
Saturday Forecast – Morning Flurries Give Way to Sunshine & Wind
Expect some lingering flurries early this morning, but by mid-day, Thunder Bay will see a mix of sun and cloud. Don’t let that bring you false hope, though—those clouds come with a gusty personality. Winds will swing west and ramp up to 30 km/h with gusts to 50, making even the modest high of +2°C feel much colder.
The UV index climbs to 4, so don’t forget the sunglasses (and maybe a bit of SPF if you’re planning to be out for long).
Tonight, partly cloudy skies take over, with a 60% chance of flurries lingering into the evening. Winds will still be coming in strong from the west at 30 km/h with gusts up to 50 before calming later in the evening. The temperature drops to -9°C, and the wind chill will make it feel like -13 overnight—perfect for not leaving the house.
Sunday & Monday – Chill Continues with Intermittent Flurries
Sunday will start with a mix of sun and cloud, but clouds will roll in near noon, bringing another 60% chance of afternoon flurries. Winds turn northwest at 20 km/h before going light by midday. The high hits a chilly +1°C, but the morning will greet you with a wind chill of -14°C—yes, that’s still very much toque weather. The UV index settles at a moderate 3.
Sunday night offers up cloudy periods with a 30% chance of more flurries, and a low of -10°C. Monday’s forecast brings a mix of sun and cloud and a high of just -2°C. Clear skies on Monday night, but they come at the frosty price of a -16°C low. This isn’t spring—it’s winter in April cosplay.
What to Wear in Thunder Bay This Weekend
Waterproof boots are your friend today—especially with those slippery sidewalks and scattered flurries. Layer up with a warm coat, hat, and gloves, especially in the early morning and late evening when wind chills dip well below freezing. Sunglasses aren’t a bad idea either, with the UV index creeping up and the chance for sun between snow squalls.
This Day in Thunder Bay Weather History
April 5th in Thunder Bay has seen some serious weather swings. The warmest temperature recorded was a pleasant 14.4°C in 1991—short sleeves in early April! But the coldest? A frigid -26.1°C in 1972. So today’s forecast is sitting comfortably in the “meh” middle of Thunder Bay’s climate drama.
