Westmount, Quebec, Canada Climate Change Severity

48
High
The current climate change severity in Westmount is High, with a 4.3% improvement in the climate score compared to last 15 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Aug. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Westmount 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), Westmount temperature has changed by around +6.06%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Aug. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
3026
-13.3%
cloudyCloudy
5544
-20%
rainyRainy
9877
-21.4%
snowySnowy
1219
58.3%
mistyMisty
011
100%

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

Climate Change Indicators:

Over the past 15 years, Westmount 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 2025, Westmount experienced significant changes:

Temperature change of

+0.4 °C

Variation in annual rainfall

+30.2 %

Change in average humidity

-5.6 %

PM2.5 levels surged by

-19.9 %

Heatwave changed by

+3.8 day(s)

Coldwave changed by

-6.2 day(s)

Wind speeds changed by

+0.2 km/h

These indicators show improvement in key parametes of climate, but Westmount 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 Aug.

Westmount Weather Forecast 30 Days (September - October 2025)
Westmount, Quebec, Canada

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Thu. 4, Sep.
moderate rainModerate rain
Temperature Icon30°/15°
Humidity Icon68%
Wind Icon29km/h
Fri. 5, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon25°/11°
Humidity Icon81%
Wind Icon19km/h
Sat. 6, Sep.
heavy rainHeavy rain
Temperature Icon17°/12°
Humidity Icon90%
Wind Icon26km/h
Sun. 7, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon20°/12°
Humidity Icon70%
Wind Icon16km/h
Mon. 8, Sep.
sunnySunny
Temperature Icon17°/9°
Humidity Icon68%
Wind Icon18km/h
Tue. 9, Sep.
sunnySunny
Temperature Icon21°/9°
Humidity Icon51%
Wind Icon10km/h
Wed. 10, Sep.
partly cloudyPartly Cloudy
Temperature Icon21°/15°
Humidity Icon64%
Wind Icon12km/h
Thu. 11, Sep.
moderate rainModerate rain
Temperature Icon12°/8°
Humidity Icon86%
Wind Icon19km/h
Fri. 12, Sep.
sunnySunny
Temperature Icon16°/7°
Humidity Icon58%
Wind Icon14km/h
Sat. 13, Sep.
sunnySunny
Temperature Icon19°/9°
Humidity Icon56%
Wind Icon14km/h
Sun. 14, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon23°/13°
Humidity Icon72%
Wind Icon16km/h
Mon. 15, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon19°/14°
Humidity Icon79%
Wind Icon12km/h
Tue. 16, Sep.
partly cloudyPartly Cloudy
Temperature Icon19°/13°
Humidity Icon58%
Wind Icon8km/h
Wed. 17, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon25°/11°
Humidity Icon62%
Wind Icon20km/h
Thu. 18, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/12°
Humidity Icon75%
Wind Icon16km/h
Fri. 19, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/10°
Humidity Icon71%
Wind Icon14km/h
Sat. 20, Sep.
moderate rain at timesModerate rain at times
Temperature Icon20°/11°
Humidity Icon72%
Wind Icon15km/h
Sun. 21, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/12°
Humidity Icon72%
Wind Icon16km/h
Mon. 22, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/12°
Humidity Icon74%
Wind Icon19km/h
Tue. 23, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/11°
Humidity Icon75%
Wind Icon18km/h
Wed. 24, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/11°
Humidity Icon73%
Wind Icon16km/h
Thu. 25, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon19°/11°
Humidity Icon75%
Wind Icon16km/h
Fri. 26, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/11°
Humidity Icon75%
Wind Icon15km/h
Sat. 27, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/12°
Humidity Icon77%
Wind Icon15km/h
Sun. 28, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/12°
Humidity Icon78%
Wind Icon16km/h
Mon. 29, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon18°/11°
Humidity Icon77%
Wind Icon17km/h
Tue. 30, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/9°
Humidity Icon74%
Wind Icon17km/h
Wed. 1, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon73%
Wind Icon17km/h
Thu. 2, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/8°
Humidity Icon76%
Wind Icon16km/h
Fri. 3, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon17°/9°
Humidity Icon75%
Wind Icon16km/h
Sat. 4, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon76%
Wind Icon16km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 4, Sep.

30.4°C

Low will be onFri. 12, Sep.

6.6°C

HumidityHumidity

High will be onSat. 6, Sep.

90%

Low will be onTue. 9, Sep.

51%

Wind SpeedWind Speed

High will be onThu. 4, Sep.

28.8km/h

Low will be onTue. 16, Sep.

8.3km/h

PrecipitationPrecipitation

High will be onSat. 6, Sep.

30.7mm

Low will be onWed. 10, Sep.

0.05mm

Ultraviolet IndexUV

High will be onWed. 10, Sep.

5

Low will be onMon. 8, Sep.

0.1

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