Monthly climate guide
Montreal weather in October
With highs near 14°C (58°F) and lows around 5°C (41°F), October feels cool in Montreal. Rainfall averages about 108 mm (wet) and the sky is often cloudy. Daytime highs are 8°C cooler than September and 9°C warmer than November.
What stands out in October
- Montreal is usually about 2°C warmer than Mont-Tremblant, 110 km away, in October.
- In Montreal, October is mid-autumn.
- Temperatures are falling — expect highs around 9°C lower by November.
It's usually the wettest month of the year.
Avg high
14°C
58°F
Avg low
5°C
41°F
Rainfall
108 mm
wet
Humidity
80%
relative
Sky
69%
cloud · often cloudy
Montreal weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | -6°C / 21°F | -17°C / 2°F | 72 mm | 92% | 69% |
| February | -4°C / 24°F | -15°C / 5°F | 68 mm | 90% | 69% |
| March | 1°C / 34°F | -8°C / 17°F | 73 mm | 86% | 65% |
| April | 10°C / 49°F | 0°C / 31°F | 97 mm | 80% | 68% |
| May | 19°C / 65°F | 8°C / 46°F | 91 mm | 79% | 66% |
| June | 23°C / 73°F | 13°C / 56°F | 105 mm | 78% | 61% |
| July | 27°C / 81°F | 17°C / 63°F | 84 mm | 74% | 55% |
| August | 26°C / 79°F | 16°C / 61°F | 100 mm | 73% | 56% |
| September | 22°C / 72°F | 12°C / 53°F | 84 mm | 75% | 54% |
| October | 14°C / 58°F | 5°C / 41°F | 108 mm | 80% | 69% |
| November | 5°C / 41°F | -3°C / 27°F | 67 mm | 84% | 72% |
| December | -2°C / 28°F | -10°C / 13°F | 91 mm | 90% | 77% |
What to pack for October
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is October a good time to visit Montreal?
Compare the months in the chart above to find your ideal window.
Best time to visit Montreal →Other Canada cities in October
Cite or embed this data
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Montreal weather in October. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/canada/montreal/october
<a href="https://weathercompare.eu/weather/canada/montreal/october">Montreal weather in October</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/canada/montreal" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Montreal weather in October"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/canada/montreal/october">Montreal weather in October</a> – WeatherCompare</p>
Montreal in October: quick answers
Is October a good time to visit Montreal?
October is one of the wetter months in Montreal, with about 108 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Montreal in October?
Average highs are about 14°C (58°F) and average lows about 5°C (41°F), based on 10 years of daily data.
Does it rain a lot in Montreal in October?
Montreal typically gets around 108 mm of rain in October — wet. It's usually the wettest month of the year.
Figures are long-term averages for the area around Montreal (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.