Sault Ste. Marie is starting Tuesday under a partly cloudy sky with cold, damp air in place. Barometric pressure is falling, and clouds will thicken through the morning. The main weather concerns over the next 24 hours are on-and-off flurries, plus a risk of freezing drizzle tonight—along with fog patches developing overnight.

Today’s Weather Overview

• Condition: Partly cloudy

• Temperature: -9.5°C (14.9°F) (headline: -10°C)

• Wind: E 8 km/h

• Wind chill: -14°C (6.8°F)

• Pressure: 102.4 kPa

• Tendency: Falling

• Humidity: 91%

• Dew point: -10.7°C (12.7°F)

• Visibility: 24 km

High humidity and a dew point close to the air temperature are a good recipe for low cloud, fog, and drizzle once the sky fills in.

Today (Tuesday)

• Sky: Becoming cloudy this morning

• Precipitation: 40% chance of flurries late morning and afternoon

• Wind: Up to 15 km/h

• High: +1°C (33.8°F)

• Wind chill: near -15°C (5°F) this morning

• UV index: 2 (Low)

Expected Conditions (Next Three Days)

Tonight (Tuesday Night)

• Sky: Mainly cloudy

• Flurries: 30% chance

• Main risk: Freezing drizzle risk

• Fog: Fog patches developing overnight

• Low: -6°C (21.2°F)

• Wind chill: near -10°C (14°F) overnight

• Wind: Up to 15 km/h

Wednesday, March 4

• Sky: Mainly cloudy

• Morning: 30% chance of flurries

• Afternoon: 30% chance of drizzle

• Main risk: Freezing drizzle risk in the morning

• Fog: Morning fog patches dissipating

• High: +4°C (39.2°F)

• Wind chill: near -10°C (14°F) in the morning

• UV index: 3 (Moderate)

• Night: Cloudy periods, low -2°C (28.4°F)

Thursday, March 5

• Day: Cloudy, high +3°C (37.4°F)

• Night: Cloudy, low 0°C (32°F)

Wardrobe Recommendations

• This morning: Dress for -10°C with a -14 wind chill—winter coat, warm hat, gloves/mitts, and a neck warmer.

• Late morning into afternoon: Temperatures rise toward +1°C, but it may feel damp. Layers work best so you can adjust.

• Tonight (freezing drizzle + fog risk): Wear boots with solid traction. If you’re driving, expect slick patches on bridges, untreated side roads, and parking lots.

• Wednesday: With temperatures near +4°C, keep a water-resistant outer layer handy—especially if drizzle develops.

Weather Trivia

Freezing drizzle is sneaky because it can form with very little warning. It happens when supercooled water droplets fall and freeze on contact with cold surfaces, creating a thin glaze that’s often harder to see than snow-covered ice.

Summary

Sault Ste. Marie weather forecast for Tuesday, March 3, 2026: partly cloudy early near -10°C, becoming cloudy with a 40% chance of flurries and a high of +1°C. Tonight brings a 30% chance of flurries with a risk of freezing drizzle and fog patches, low -6°C. Wednesday stays mainly cloudy with flurries then drizzle and freezing drizzle risk in the morning, high +4°C.