Selkirk, Manitoba can expect a mix of warm sunshine and stormy spells this week, with conditions changing quickly in a pattern typical for early August. As of Wednesday afternoon, August 5, 2026, temperatures reached 26.6°C under mostly cloudy skies at the Winnipeg Richardson International Airport, which provides observations for the area. Winds from the southwest were gusting to 46 km/h, and Environment Canada had no active weather alerts in effect.
Tonight carries a 30% chance of showers with a risk of a thunderstorm and an overnight low of 14°C. Thursday, August 6, will heat up to 28°C with a humidex of 31, but residents should be ready for a 60% chance of showers and the risk of a late-afternoon thunderstorm. Southwest winds could gust to 50 km/h, and the UV index will be high at 7.
A cooler, calmer pattern settles in for the weekend. From Friday, August 7, through Sunday, August 9, Environment Canada forecasts sunny skies with daytime highs between 24°C and 25°C and mostly clear overnight lows around 12°C. It will be a comfortable stretch of weather ideal for outdoor plans, well aligned with typical August normals of a 26°C high and 13°C low.
This comes after an unusually active severe weather season across southern Manitoba this summer, which has included multiple tornadoes and damaging storms in other parts of the province. The Manitoba Government reminds residents that lightning is the most dangerous aspect of severe summer weather, and conditions can develop quickly.
