Ontario residents who have already endured a sweltering summer 2025 should buckle up, as the trend of scorching above-normal temperatures is set to continue through the summer and into the fall months. Looking forward, a new August 1 forecast from ECCC predicts warmer-than-normal temperatures will blanket the province into the fall. The modelling for these probability forecast maps uses climatology spanning from 1991 to 2020 to establish a baseline normal. ECCC's prediction stands in contrast with an earlier fall prediction that called for cooler temperatures to arrive this fall. The Farmers' Almanac Extended Fall Forecast for 2025, revealed in July, predicted a cool, dry start to the season followed by a "very unsettled" and cold end of fall.