Chester, Illinois, United States Climate Change Severity

57
High
The current climate change severity in Chester is High, with a 18.7% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jul. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Chester Weather Condition Changes (Historic Vs 2026)

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

Over the past 16 year(s), Chester temperature has changed by around +9.6%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
4197
136.5%
cloudyCloudy
539
-83.01%
rainyRainy
8147
-41.9%
snowySnowy
43
-25%
mistyMisty
06
100%

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

Climate Change Indicators:

Over the past 16 years, Chester has experienced measurable shifts in key climate parameters, contributing to the current severity score of 57 (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

57/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Chester experienced significant changes:

Temperature change of

+1.3 °C

Variation in annual rainfall

+11.33 %

Change in average humidity

-5.73 %

PM2.5 levels surged by

-28.37 %

Heatwave changed by

+3 Days

Coldwave changed by

-4 Days

Wind speeds changed by

+2.49 km/h

These indicators show that Chester 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 Jul.

Chester Weather Forecast 30 Days (August - September 2026)
Chester, Illinois, United States

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Tue. 4, Aug.
sunnySunny
Temperature Icon32°/19°
Humidity Icon66%
Wind Icon12.2km/h
Wed. 5, Aug.
sunnySunny
Temperature Icon32°/20°
Humidity Icon66%
Wind Icon14.4km/h
Thu. 6, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon27°/21°
Humidity Icon87%
Wind Icon19.8km/h
Fri. 7, Aug.
partly cloudyPartly Cloudy
Temperature Icon29°/22°
Humidity Icon80%
Wind Icon23.8km/h
Sat. 8, Aug.
sunnySunny
Temperature Icon33°/19°
Humidity Icon74%
Wind Icon20.9km/h
Sun. 9, Aug.
sunnySunny
Temperature Icon37°/23°
Humidity Icon61%
Wind Icon23km/h
Mon. 10, Aug.
sunnySunny
Temperature Icon37°/24°
Humidity Icon55%
Wind Icon27km/h
Tue. 11, Aug.
sunnySunny
Temperature Icon37°/24°
Humidity Icon57%
Wind Icon24.5km/h
Wed. 12, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon30°/20°
Humidity Icon77%
Wind Icon14km/h
Thu. 13, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon29°/20°
Humidity Icon77%
Wind Icon12.6km/h
Fri. 14, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon29°/20°
Humidity Icon78%
Wind Icon13.5km/h
Sat. 15, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon29°/19°
Humidity Icon77%
Wind Icon13.8km/h
Sun. 16, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon29°/20°
Humidity Icon77%
Wind Icon13.6km/h
Mon. 17, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon30°/20°
Humidity Icon77%
Wind Icon13.9km/h
Tue. 18, Aug.
patchy rain possibleRain Possible
Temperature Icon30°/20°
Humidity Icon76%
Wind Icon12.2km/h
Wed. 19, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon30°/20°
Humidity Icon76%
Wind Icon13.9km/h
Thu. 20, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon30°/20°
Humidity Icon75%
Wind Icon14.8km/h
Fri. 21, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon30°/20°
Humidity Icon74%
Wind Icon14.6km/h
Sat. 22, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon29°/19°
Humidity Icon74%
Wind Icon12.9km/h
Sun. 23, Aug.
moderate rain at timesRain
Temperature Icon30°/19°
Humidity Icon73%
Wind Icon13.8km/h
Mon. 24, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon31°/20°
Humidity Icon69%
Wind Icon16.1km/h
Tue. 25, Aug.
patchy rain possibleRain Possible
Temperature Icon31°/20°
Humidity Icon68%
Wind Icon13.9km/h
Wed. 26, Aug.
heavy rain at timesHeavy Rain
Temperature Icon31°/19°
Humidity Icon70%
Wind Icon13.4km/h
Thu. 27, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon31°/20°
Humidity Icon71%
Wind Icon14km/h
Fri. 28, Aug.
moderate rain at timesRain
Temperature Icon30°/20°
Humidity Icon70%
Wind Icon15km/h
Sat. 29, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon31°/20°
Humidity Icon71%
Wind Icon14.8km/h
Sun. 30, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon30°/20°
Humidity Icon75%
Wind Icon15.4km/h
Mon. 31, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon30°/20°
Humidity Icon76%
Wind Icon15.4km/h
Tue. 1, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon29°/19°
Humidity Icon74%
Wind Icon16.5km/h
Wed. 2, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon29°/19°
Humidity Icon73%
Wind Icon14km/h
Thu. 3, Sep.
heavy rain at timesHeavy Rain
Temperature Icon29°/19°
Humidity Icon71%
Wind Icon14.8km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSun. 9, Aug.

37°C

Low will be onTue. 4, Aug.

19°C

HumidityHumidity

High will be onThu. 6, Aug.

87%

Low will be onMon. 10, Aug.

55%

Wind SpeedWind Speed

High will be onMon. 10, Aug.

27km/h

Low will be onTue. 4, Aug.

12.2km/h

PrecipitationPrecipitation

High will be onThu. 6, Aug.

9.1mm

Low will be onTue. 25, Aug.

0.3mm

Ultraviolet IndexUV

High will be onTue. 4, Aug.

9.7

Low will be onThu. 6, Aug.

4.4

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