Montreal, Quebec, Canada Climate Change Severity

48
High
The current climate change severity in Montreal is High, with a 4% improvement in the climate score compared to last 16 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Sep. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Montreal Weather Condition Changes (Historic Vs 2026)

0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Montreal temperature has changed by around +2.5%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Sep. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
37113
205.4%

cloudyCloudy
6220
-67.7%

rainyRainy
11062
-43.6%

snowySnowy
1317
30.7%

mistyMisty
15
400%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 16 years, Montreal has experienced measurable shifts in key climate parameters, contributing to the current severity score of 48 (within the High severity category). While the score remains High, certain factors have improved over time. Here’s a breakdown of the specific changes observed:

Severity Score

48/100


High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Montreal experienced significant changes:

Temperature change of

+0.23 °C


Variation in annual rainfall

+102.41 %


Change in average humidity

-4.16 %


PM2.5 levels surged by

-25.74 %


Heatwave changed by

-4 Days


Coldwave changed by

-6 Days


Wind speeds changed by

+0.73 km/h


These indicators show improvement in key parametes of climate, but Montreal remains in the High severity category. Continuous focus on climate resilience is necessary to avoid further worsening and ensure sustainability.

Check how we calculate Climate Change Severity
Based on data from Jan. to Sep.

Montreal Weather Forecast 30 Days (October - November 2026)
Montreal, Quebec, Canada


Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sat. 3, Oct.
sunnySunny

Temperature Icon16°/7°

Humidity Icon58%

Wind Icon14.8km/h
Sun. 4, Oct.
overcastOvercast

Temperature Icon17°/7°

Humidity Icon69%

Wind Icon22km/h
Mon. 5, Oct.
sunnySunny

Temperature Icon15°/7°

Humidity Icon69%

Wind Icon26.6km/h
Tue. 6, Oct.
sunnySunny

Temperature Icon11°/3°

Humidity Icon53%

Wind Icon23.8km/h
Wed. 7, Oct.
sunnySunny

Temperature Icon14°/4°

Humidity Icon52%

Wind Icon12.2km/h
Thu. 8, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon18°/11°

Humidity Icon74%

Wind Icon16.9km/h
Fri. 9, Oct.
patchy rain possiblePatchy rain nearby

Temperature Icon16°/11°

Humidity Icon67%

Wind Icon18.4km/h
Sat. 10, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon15°/7°

Humidity Icon74%

Wind Icon17.8km/h
Sun. 11, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon14°/7°

Humidity Icon71%

Wind Icon17.5km/h
Mon. 12, Oct.
patchy rain possibleRain Possible

Temperature Icon15°/7°

Humidity Icon72%

Wind Icon16.8km/h
Tue. 13, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon14°/7°

Humidity Icon76%

Wind Icon16.9km/h
Wed. 14, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon15°/8°

Humidity Icon78%

Wind Icon16.1km/h
Thu. 15, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon15°/7°

Humidity Icon77%

Wind Icon21.4km/h
Fri. 16, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/7°

Humidity Icon74%

Wind Icon23.1km/h
Sat. 17, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon12°/5°

Humidity Icon75%

Wind Icon18.4km/h
Sun. 18, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/5°

Humidity Icon72%

Wind Icon17.3km/h
Mon. 19, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/6°

Humidity Icon74%

Wind Icon21.3km/h
Tue. 20, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon14°/7°

Humidity Icon80%

Wind Icon21.4km/h
Wed. 21, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/7°

Humidity Icon79%

Wind Icon19.8km/h
Thu. 22, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/6°

Humidity Icon78%

Wind Icon20km/h
Fri. 23, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon12°/5°

Humidity Icon75%

Wind Icon19.1km/h
Sat. 24, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon11°/5°

Humidity Icon77%

Wind Icon19.7km/h
Sun. 25, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon11°/5°

Humidity Icon76%

Wind Icon17.8km/h
Mon. 26, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon10°/5°

Humidity Icon76%

Wind Icon15.9km/h
Tue. 27, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon11°/4°

Humidity Icon74%

Wind Icon19.1km/h
Wed. 28, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon10°/4°

Humidity Icon77%

Wind Icon20km/h
Thu. 29, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon10°/4°

Humidity Icon77%

Wind Icon19.4km/h
Fri. 30, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon10°/4°

Humidity Icon78%

Wind Icon19.9km/h
Sat. 31, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon10°/4°

Humidity Icon78%

Wind Icon18.8km/h
Sun. 1, Nov.
moderate or heavy rain showerRain Showers

Temperature Icon10°/3°

Humidity Icon77%

Wind Icon23.6km/h
Mon. 2, Nov.
moderate or heavy rain showerRain Showers

Temperature Icon8°/3°

Humidity Icon77%

Wind Icon18.5km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 8, Oct.

18°C


Low will be onTue. 6, Oct.

3°C

HumidityHumidity

High will be onTue. 20, Oct.

80%


Low will be onWed. 7, Oct.

52%

Wind SpeedWind Speed

High will be onMon. 5, Oct.

26.6km/h


Low will be onWed. 7, Oct.

12.2km/h

PrecipitationPrecipitation

High will be onSat. 31, Oct.

9.9mm


Low will be onWed. 7, Oct.

0.01mm

Ultraviolet IndexUV

High will be onThu. 8, Oct.

5


Low will be onFri. 16, Oct.

2