The snow machine over Lake Superior is easing up, but winter still has plenty in the tank for the Soo this week

Sault Ste. Marie Weather Report – Monday, December 8, 2025

Lake Effect Snow Begins to Ease, But Flurries Linger

Thunder Bay – WEATHER DESK – Good morning, Sault Ste. Marie! You’ve likely been brushing off more than just your car the last few days, and this morning’s no exception.

As of 6:00 AM EST, conditions at the Sault Ste. Marie Airport report light snow showers with drifting snow, a temperature of -6.4°C, and wind chills around -15°C. Winds from the west-southwest at 29 km/h are keeping things brisk, while humidity sits at 82%, creating ideal conditions for persistent lake-effect snow.

Visibility remains at 13 km, not bad considering the snowy air, and barometric pressure is rising at 102.7 kPa, a sign of slow improvement. However, the weather statement issued earlier today highlights 5 to 10 cm of local snowfall, especially around St. Joseph Island and portions of Highway 17. Snow squalls will begin to dissipate later this morning, though flurries could stick around on and off for most of the day.

Expect a high of -4°C this afternoon, with north winds becoming southwest at 30 km/h. Wind chills will stay sharp — around -15°C this morning, improving slightly to -9°C by afternoon.

Tonight: More Flurries, More Wind

Don’t put the shovel away just yet.

Clouds increase tonight, with a 40% chance of flurries, followed by steady flurries developing before morning. Winds will ramp up from the south at 30 km/h, gusting to 50, bringing blowing snow conditions overnight. The temperature will hold near -6°C, but wind chill values will feel closer to -17°C.

Tuesday: Fresh Snow and Blustery Conditions

Tuesday brings another 10 to 15 cm of snow, with blowing snow expected in the morning and early afternoon. Winds will be strong — from the south early, shifting to the west, both gusting up to 50 km/h. Expect steady temperatures around -4°C, but it’ll feel like -14°C thanks to the wind.

Flurries taper off by afternoon, though skies remain cloudy with a 40% chance of lingering snow through the evening. Tuesday night stays cloudy with a 60% chance of flurries and a low of -6°C.

Mid-Week Outlook: A Flurry-Filled Forecast

Wednesday through the weekend continues the “flurries almost daily” trend, with highs between -5°C and -8°C, and overnight lows dipping as far as -13°C. While there are no major storms forecast, this frequent light snow means roads will remain slick, and snowbanks will keep creeping higher.

What to Wear

This is classic lake-effect layering weather:

• Warm base layers to keep the chill out

• Waterproof outerwear (yes, your pants too!)

• Gloves, toque, scarf, and winter boots are non-negotiable

• A good hood can save your ears from those blustery gusts

If you’re commuting or out running errands, expect snow drifts and slick patches, especially on open roads and near the lake.

❄️ Weather Trivia Time!

Did you know? Sault Ste. Marie is one of Ontario’s snowiest cities, thanks to its position downwind of Lake Superior, which fuels epic lake-effect snow events like today’s. Some winters, the Soo can see over 300 cm of snow!