Belleville, Ontario, Canada Climate Change Severity

52
High
The current climate change severity in Belleville is High, with a 5.8% 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 Sep. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Belleville 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), Belleville temperature has changed by around -1.03%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
4524
-46.6%
cloudyCloudy
6642
-36.3%
rainyRainy
10975
-31.1%
snowySnowy
1012
20%
mistyMisty
013
100%

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

Climate Change Indicators:

Over the past 15 years, Belleville 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, Belleville experienced significant changes:

Temperature change of

-0.1 °C

Variation in annual rainfall

+35.2 %

Change in average humidity

-2.1 %

PM2.5 levels surged by

-20.3 %

Heatwave changed by

-2.1 day(s)

Coldwave changed by

-8.8 day(s)

Wind speeds changed by

+2.7 km/h

These indicators show that Belleville 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 Sep.

Belleville Weather Forecast 30 Days (October - November 2025)
Belleville, Ontario, Canada

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 21, Oct.
partly cloudyPartly Cloudy
Temperature Icon16°/3°
Humidity Icon83%
Wind Icon24km/h
Wed. 22, Oct.
heavy rainHeavy rain
Temperature Icon12°/8°
Humidity Icon85%
Wind Icon22km/h
Thu. 23, Oct.
moderate rainModerate rain
Temperature Icon11°/8°
Humidity Icon87%
Wind Icon25km/h
Fri. 24, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon10°/4°
Humidity Icon77%
Wind Icon22km/h
Sat. 25, Oct.
partly cloudyPartly Cloudy
Temperature Icon11°/5°
Humidity Icon61%
Wind Icon10km/h
Sun. 26, Oct.
partly cloudyPartly Cloudy
Temperature Icon11°/4°
Humidity Icon62%
Wind Icon13km/h
Mon. 27, Oct.
sunnySunny
Temperature Icon10°/1°
Humidity Icon64%
Wind Icon18km/h
Tue. 28, Oct.
sunnySunny
Temperature Icon12°/0°
Humidity Icon55%
Wind Icon19km/h
Wed. 29, Oct.
sunnySunny
Temperature Icon13°/1°
Humidity Icon57%
Wind Icon13km/h
Thu. 30, Oct.
sunnySunny
Temperature Icon14°/3°
Humidity Icon57%
Wind Icon11km/h
Fri. 31, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon16°/8°
Humidity Icon77%
Wind Icon30km/h
Sat. 1, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/10°
Humidity Icon86%
Wind Icon28km/h
Sun. 2, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon8°/3°
Humidity Icon65%
Wind Icon29km/h
Mon. 3, Nov.
sunnySunny
Temperature Icon6°/-1°
Humidity Icon56%
Wind Icon25km/h
Tue. 4, Nov.
heavy rain at timesHeavy rain at times
Temperature Icon10°/3°
Humidity Icon74%
Wind Icon19km/h
Wed. 5, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/5°
Humidity Icon78%
Wind Icon22km/h
Thu. 6, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/5°
Humidity Icon76%
Wind Icon23km/h
Fri. 7, Nov.
moderate rain at timesModerate rain at times
Temperature Icon10°/3°
Humidity Icon74%
Wind Icon21km/h
Sat. 8, Nov.
patchy rain possiblePatchy rain possible
Temperature Icon9°/2°
Humidity Icon72%
Wind Icon18km/h
Sun. 9, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/2°
Humidity Icon76%
Wind Icon20km/h
Mon. 10, Nov.
moderate rain at timesModerate rain at times
Temperature Icon9°/3°
Humidity Icon75%
Wind Icon25km/h
Wed. 12, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/1°
Humidity Icon72%
Wind Icon22km/h
Thu. 13, Nov.
moderate rain at timesModerate rain at times
Temperature Icon7°/0°
Humidity Icon72%
Wind Icon21km/h
Fri. 14, Nov.
heavy rain at timesHeavy rain at times
Temperature Icon6°/1°
Humidity Icon74%
Wind Icon21km/h
Sat. 15, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/1°
Humidity Icon76%
Wind Icon21km/h
Sun. 16, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/1°
Humidity Icon79%
Wind Icon21km/h
Mon. 17, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon6°/0°
Humidity Icon80%
Wind Icon22km/h
Tue. 18, Nov.
heavy rain at timesHeavy rain at times
Temperature Icon6°/0°
Humidity Icon77%
Wind Icon22km/h
Wed. 19, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon6°/0°
Humidity Icon77%
Wind Icon22km/h
Thu. 20, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon5°/-1°
Humidity Icon75%
Wind Icon24km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onTue. 21, Oct.

16.3°C

Low will be onThu. 20, Nov.

-1°C

HumidityHumidity

High will be onThu. 23, Oct.

87%

Low will be onTue. 28, Oct.

55%

Wind SpeedWind Speed

High will be onFri. 31, Oct.

30.2km/h

Low will be onSat. 25, Oct.

10.4km/h

PrecipitationPrecipitation

High will be onWed. 22, Oct.

35.2mm

Low will be onSat. 25, Oct.

0.01mm

Ultraviolet IndexUV

High will be onSat. 25, Oct.

3

Low will be onWed. 12, Nov.

1

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