Sault Ste. Marie is facing a changeable stretch of weather, with Environment Canada calling for a 70 per cent chance of showers this afternoon and a risk of thunderstorms, widespread smoke and a daytime high around 27 °C.
Immediate outlook and hazards
Today's forecast calls for mainly sunny conditions this morning, followed by increasing cloudiness and a significant chance of afternoon showers. The agency warns of a thunderstorm risk this afternoon and forecasts widespread smoke to persist. The high is expected to reach 27 °C with a humidex up to 31 and a UV index of 6 (high).
Overnight, showers or thunderstorms are expected to continue with local rainfall amounts of 10 to 20 mm. The low will be about 17 °C. Forecasters continue to note smoke in the atmosphere for this night and into Saturday.
Weekend trend and winds
Saturday is forecast to be cloudy with a 40 per cent chance of showers in the morning and a lingering risk of thunderstorms in the afternoon. Winds are expected to become northwest at 30 km/h, gusting to 50 km/h, and the high will be near 24 °C (humidex 29). Saturday night should clear, but smoke is expected to remain widespread.
Sunday is expected to be sunniest of the immediate stretch with a high near 24 °C, before cloudier conditions and repeated chances of showers return early next week.
Forecast summary
| Day | Conditions | High / Low |
|---|---|---|
| Today | Increasing clouds, 70% chance showers, thunderstorm risk, widespread smoke | 27 °C / 17 °C |
| Tonight | Showers or thunderstorms; local 10–20 mm; smoke | Low 17 °C |
| Saturday | Cloudy; 40% showers; risk of thunder; NW winds gusting to 50 km/h; smoke | 24 °C / 12 °C |
| Sunday | Sunny; smoke persists | 24 °C |
- Rain amounts: Local totals of 10–20 mm expected overnight into Friday morning.
- Wind: Saturday gusts up to 50 km/h possible from the northwest.
- Air quality: Widespread smoke will reduce air quality and visibility at times.
Safety guidance
People with respiratory or cardiovascular conditions, older adults and children should limit prolonged or intense outdoor exertion while smoke is present. Consider moving activities indoors, use air-conditioned spaces when available, and follow local air quality advisories. If thunderstorms are approaching, seek shelter indoors and avoid driving in heavy rain where visibility is reduced. Monitor updated forecasts and warnings from Environment Canada.
Expect conditions to evolve; check local forecasts for timing of showers, thunderstorm development and any changes to wind and smoke advisories.
