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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Perspective Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Kingston residents and visitors should prepare for a mix of sun and cloud today, with lake breezes off Lake Ontario keeping temperatures cooler near the waterfront. The live forecast above shows the current conditions for the Limestone City, so check that before heading out.
What’s the weather pattern for Kingston this week?
Kingston sits where Lake Ontario meets the St. Lawrence River, so its weather is often shaped by lake effects. Expect a typical early‑season pattern: mild days, cool nights, and the chance of a passing shower as a weak system moves through. Winds will shift from the southwest, bringing slightly warmer air inland, but the immediate shoreline stays a few degrees cooler.
How does Lake Ontario influence Kingston’s climate?
The lake moderates Kingston’s temperatures year‑round. In winter, it can bring lake‑effect snow squalls off the open water; in summer, afternoon lake breezes keep the waterfront pleasant while inland neighbourhoods warm up. The St. Lawrence River also adds humidity, especially during July and August.
Does Kingston get a lot of snow?
Yes, Kingston averages about 150 cm of snow each winter. Lake‑effect snow off Lake Ontario can add bursts of heavy accumulation, especially in December and January. The city is well‑equipped for snow removal.
When is the best time to visit Kingston?
Late spring (May–June) and early fall (September–October) offer the most comfortable weather, with mild temperatures and lower humidity. Summer can be hot and humid, while winter is cold and snowy but beautiful for waterfront walks.
How accurate are the live forecasts for Kingston?
Environment and Climate Change Canada provides the official forecasts used by most Canadian outlets. For Kingston, the three‑day outlook is typically reliable; beyond that, lake effects can make longer‑range predictions less certain.
Sources
For more Ontario forecasts, visit our Canada weather hub or check conditions in nearby Toronto and Ottawa. If severe weather is expected, see our weather warning page.