In the first week, Montreal can expect around 3–11 °C with 1 wet day (at least 1 mm). The second week looks similar: around 6–10 °C on average. Warmest day: Monday (2 Nov) at 15 °C; coldest night: Saturday (24 Oct) at 0 °C.
Weather models are reliable for the first few days, but small errors grow over time. That is why every day on this page is marked: days 1–3 are reliable, days 4–7 moderately so, and from day 8 onwards the forecast shows the direction of travel – a warmer or cooler spell, a wetter period – rather than the exact temperature of a given day.
In the first week, Montreal can expect around 3–11 °C with 1 wet day (at least 1 mm). The second week looks similar: around 6–10 °C on average. Warmest day: Monday (2 Nov) at 15 °C; coldest night: Saturday (24 Oct) at 0 °C.
The models show at least 1 mm of rain on 6 of the next 15 days. The wettest day looks like Tuesday (3 Nov) with about 38.1 mm. From day 8 onwards this is a trend, not an exact daily figure.
Days 1–3 are usually reliable and days 4–7 moderately so. Beyond that the forecast shows the trend rather than exact daily values — check back each day.
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