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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Scope Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
For Kingston, the live forecast above shows the current conditions and the near-term outlook. Kingston’s weather is shaped by Lake Ontario, bringing cooler springs, mild autumns, and lake-effect snow in winter, with July highs averaging around 26°C.
What makes Kingston’s weather different from other Ontario cities?
Kingston sits at the junction of Lake Ontario and the St. Lawrence River, which moderates temperatures year-round. This means slightly cooler summer afternoons than inland cities like Ottawa, but also more cloud cover and a higher chance of lake-effect snow from November through January. The city’s position also funnels winds down the St. Lawrence Valley, making winter wind chills a regular concern.
How reliable are the 7-day and 14-day forecasts for Kingston?
The 7-day forecast from Environment and Climate Change Canada is generally reliable for planning, as it captures the influence of passing weather systems. The 14-day outlook is more of a trend guide, useful for spotting a warm or cold spell but less precise day-to-day. For real-time detail, the kingston weather hourly updates on the radar provide the most accurate short-term picture.
Does Kingston get more snow than Toronto?
Yes, Kingston averages about 120 cm of snow annually, compared to Toronto’s roughly 100 cm. The lake-effect snow machine off Lake Ontario is more active here, especially in December and January.
What is the best time to visit Kingston for mild weather?
Late May through September offers the most comfortable conditions, with daytime highs between 20°C and 26°C and lower humidity than southern Ontario cities. July and August are warmest but can bring occasional thunderstorms.
How can I check the kingston weather radar for Environment Canada?
Environment and Climate Change Canada’s radar page for the Kingston region shows live precipitation intensity. The radar is updated every 10 minutes and is the most reliable tool for tracking rain, snow, or lake-effect bands in real time.
Sources
For broader Canadian weather coverage, see our Canada weather hub or compare conditions with Ottawa weather and Toronto weather. For severe weather alerts, check the weather warning page.