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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 ·
Blainville, nestled in the Laurentians north of Montreal, sees a mix of clouds and sun today with conditions matching the live forecast above. The season brings crisp morning lows, while afternoon highs stay near the seasonal average, typical for this inland region west of Lake of Two Mountains.
What’s driving today’s weather in Blainville?
A ridge of high pressure from the St. Lawrence Valley is keeping the area mostly dry, though lake breezes off the Lake of Two Mountains can stir up light afternoon winds. For a broader view of conditions across the province, visit our Canada weather hub.
How does Blainville’s inland location affect its climate?
Situated at roughly 60 metres elevation, Blainville lies west of Montreal, shielded from some Lake Ontario moisture but open to cold air draining from the Laurentian hills. This gives it cooler nights than Montreal proper, especially in spring and autumn, and snowfall totals that often outpace the island city.
Does Blainville get lake-effect snow from the St. Lawrence?
Occasionally. When northwest winds blow over the Lake of Two Mountains and the Ottawa River, Blainville can see narrow lake-effect bands, though the effect is weaker than areas near the Great Lakes.
How does Blainville’s weather compare with Montreal?
Blainville is typically 1–3°C cooler year-round than downtown Montreal, especially at night, and receives about 20–30 cm more snow annually due to its northern, inland position. For more detail, check the weather warning page during storms.
What’s the best time to visit Blainville for mild weather?
Late May to late September offers the most comfortable conditions, with average highs in the low 20s to mid-20s°C. July and August see peak warmth, but afternoon thunderstorms are common.