Overview

• Early June kicked off with cooler-than-normal and soggy conditions across Ontario, marking one of the chilliest June starts in years.
• Environment and Climate Change Canada’s latest outlook places southern Ontario in a 70–90% probability zone for above-average summer temperatures.
• The Weather Network warns of elevated humidity levels in southern and eastern Ontario that could fuel more frequent showers and thunderstorms.
• Northern Ontario is projected to endure a hot, dry season with heightened wildfire risk that may impact air quality province-wide.
• Forecasts call for temperatures to warm through mid-June with daytime highs near or above 30°C before rain temporarily eases the heat.