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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Toronto Post Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
For Barrie, Ontario, the live forecast above shows a high of around 24°C and a low near 14°C today, with a 40% chance of showers. This is typical for mid-summer, though lake breezes from Lake Simcoe can keep the shoreline a few degrees cooler than inland areas.
What is the 7-day outlook for Barrie?
According to the live forecast above, the next seven days bring highs from 22°C to 27°C, with overnight lows between 12°C and 16°C. Expect a mix of sun and cloud, with the highest rain probability on Thursday evening. The barrie weather 7 day trend shows a stable pattern, typical of July in Simcoe County.
How does the 10-day and 30-day forecast look?
The weather in barrie 10 days extends this pattern, with no extreme heat or cold signals. Looking further ahead, the barrie weather 30 days outlook from Environment Canada suggests seasonal temperatures near 25°C, though long-range accuracy declines after two weeks. For the barrie weather hourly breakdown, the live forecast above updates every hour with precipitation timing.
What is the weather in Barrie tomorrow?
Tomorrow’s forecast shows a high near 23°C with a 30% chance of isolated showers. Morning cloud cover will break for sunny intervals by noon, with light northwest winds at 15 km/h. Check the live forecast above for hourly updates.
Does Lake Simcoe affect Barrie’s weather?
Yes, Lake Simcoe moderates temperatures in Barrie, keeping spring and fall milder than inland areas. In summer, afternoon lake breezes can drop temperatures by 3–5°C along the waterfront, and in winter, the lake contributes to lake-effect snow bands east of the city.
Where can I find Barrie weather warnings?
Environment Canada issues warnings for Barrie when conditions like severe thunderstorms, freezing rain, or extreme cold are expected. Check our Weather Warning page for active alerts, or see the Canada weather hub for regional updates.