Montreal, Quebec, Canada Climate Change Severity

52
High
The current climate change severity in Montreal is High, with a 2.9% worsening in the climate score compared to last 15 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to May (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Montreal Weather Condition Changes (Historic Vs 2025)

2025
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Montreal temperature has changed by around -88.8%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty

Data: Jan. to May (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
1910
-47.3%
cloudyCloudy
4127
-34.1%
rainyRainy
6867
-1.4%
snowySnowy
1219
58.3%
mistyMisty
01
100%

Climate Change Indicators:

Over the past 15 years, Montreal has experienced measurable shifts in key climate parameters, contributing to the current severity score of 52 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

52/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Montreal experienced significant changes:

Temperature change of

-3.01 °C

Variation in annual rainfall

+23.2 %

Change in average humidity

-2.07 %

PM2.5 levels surged by

-27.5 %

Heatwave changed by

-3.8 day(s)

Coldwave changed by

-6.2 day(s)

Wind speeds changed by

+0.8 km/h

These indicators show that Montreal is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

Check how we calculate Climate Change Severity

Based on data from Jan. to May

Montreal Weather Forecast 30 Days (July 2025)
Montreal, Quebec, Canada

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 1, Jul.
heavy rainHeavy rain
Temperature Icon29°/21°
Humidity Icon81%
Wind Icon19km/h
Wed. 2, Jul.
sunnySunny
Temperature Icon28°/20°
Humidity Icon74%
Wind Icon23km/h
Thu. 3, Jul.
partly cloudyPartly Cloudy
Temperature Icon25°/18°
Humidity Icon72%
Wind Icon28km/h
Fri. 4, Jul.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/14°
Humidity Icon64%
Wind Icon16km/h
Sat. 5, Jul.
moderate rainModerate rain
Temperature Icon24°/15°
Humidity Icon70%
Wind Icon12km/h
Sun. 6, Jul.
patchy rain possiblePatchy rain nearby
Temperature Icon25°/20°
Humidity Icon93%
Wind Icon14km/h
Mon. 7, Jul.
patchy rain possiblePatchy rain nearby
Temperature Icon23°/16°
Humidity Icon97%
Wind Icon14km/h
Tue. 8, Jul.
patchy rain possiblePatchy rain nearby
Temperature Icon24°/16°
Humidity Icon84%
Wind Icon9km/h
Wed. 9, Jul.
partly cloudyPartly Cloudy
Temperature Icon26°/18°
Humidity Icon84%
Wind Icon7km/h
Thu. 10, Jul.
patchy rain possiblePatchy rain nearby
Temperature Icon30°/18°
Humidity Icon80%
Wind Icon12km/h
Fri. 11, Jul.
patchy rain possiblePatchy rain nearby
Temperature Icon27°/20°
Humidity Icon79%
Wind Icon21km/h
Sat. 12, Jul.
partly cloudyPartly Cloudy
Temperature Icon24°/18°
Humidity Icon66%
Wind Icon21km/h
Sun. 13, Jul.
sunnySunny
Temperature Icon25°/15°
Humidity Icon58%
Wind Icon12km/h
Mon. 14, Jul.
sunnySunny
Temperature Icon26°/17°
Humidity Icon59%
Wind Icon9km/h
Tue. 15, Jul.
heavy rain at timesHeavy rain at times
Temperature Icon27°/17°
Humidity Icon76%
Wind Icon14km/h
Wed. 16, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/18°
Humidity Icon79%
Wind Icon14km/h
Thu. 17, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/18°
Humidity Icon78%
Wind Icon17km/h
Fri. 18, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/18°
Humidity Icon76%
Wind Icon15km/h
Sat. 19, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/17°
Humidity Icon77%
Wind Icon17km/h
Sun. 20, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/18°
Humidity Icon74%
Wind Icon16km/h
Mon. 21, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/18°
Humidity Icon75%
Wind Icon16km/h
Tue. 22, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/18°
Humidity Icon74%
Wind Icon15km/h
Wed. 23, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/17°
Humidity Icon76%
Wind Icon16km/h
Thu. 24, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/17°
Humidity Icon76%
Wind Icon16km/h
Fri. 25, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/16°
Humidity Icon77%
Wind Icon17km/h
Sat. 26, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/17°
Humidity Icon77%
Wind Icon17km/h
Sun. 27, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/17°
Humidity Icon79%
Wind Icon14km/h
Mon. 28, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/18°
Humidity Icon76%
Wind Icon16km/h
Tue. 29, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/17°
Humidity Icon75%
Wind Icon15km/h
Wed. 30, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/16°
Humidity Icon72%
Wind Icon16km/h
Thu. 31, Jul.
moderate rain at timesModerate rain at times
Temperature Icon26°/16°
Humidity Icon72%
Wind Icon14km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 10, Jul.

29.6°C

Low will be onFri. 4, Jul.

14.2°C

HumidityHumidity

High will be onMon. 7, Jul.

97%

Low will be onSun. 13, Jul.

58%

Wind SpeedWind Speed

High will be onThu. 3, Jul.

28.4km/h

Low will be onWed. 9, Jul.

7.2km/h

PrecipitationPrecipitation

High will be onTue. 1, Jul.

42.9mm

Low will be onSat. 12, Jul.

0.05mm

Ultraviolet IndexUV

High will be onWed. 9, Jul.

6

Low will be onSat. 5, Jul.

0.2

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