Residents in Kingston, Ontario are enjoying a bright start to the week this Monday, April 27, 2026, before more unsettled weather moves into the region. According to Environment Canada, Monday features mainly sunny skies with early morning fog patches expected to clear, a high of 15°C, and a high ultraviolet index of 7.
This pleasant stretch is expected to be short-lived, as the forecast shifts on Tuesday and Wednesday. There is a 60 percent chance of rain both days, with temperatures predicted to drop to between 11°C and 14°C. Tuesday alone could see between 10 and 15 millimetres of rainfall.
The cooler trend will continue through the end of the week. By Friday, May 1, and Saturday, May 2, high temperatures are expected to settle between 10°C and 12°C. With overnight lows nearing freezing, residents should be prepared for a chance of flurries mixed with rain showers.
These fluctuating conditions are consistent with the typical transition period in the region. According to the Queen’s University International Centre, weather in Kingston can change very rapidly during the spring, with the potential to experience rain, snow, and temperatures above 10°C within a single day. Local weather is also frequently influenced by the position of the city on the shores of Lake Ontario, which can create distinct microclimates near the water.
This cool and changeable spring follows broader seasonal patterns for Ontario. As noted in the 2026 spring forecast, persistent cooler-than-normal temperatures have been expected across the province, influenced by fading La Niña conditions.
