Weather in Montréal in October
October in Montréal is cool with average temperatures around 9.0°C (48.2°F). Expect significant rainfall with 114mm across approximately 14 days.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
13.5°C
56.3°F
Low
4.5°C
40.1°F
Precipitation
114 mm
4.5 inches
~14 rainy days
Conditions
Humidity
81%
Comparison to Adjacent Months
October is 7.9°C cooler than September, 26mm wetter than September.
October is 7.4°C warmer than November, 33mm wetter than November.