Joliet, Illinois, United States Climate Change Severity

62
Very High
The current climate change severity in Joliet is Very High, with a 22.6% 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

Joliet 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), Joliet temperature has changed by around +15.1%, 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
2875
167.8%
cloudyCloudy
5020
-60%
rainyRainy
8247
-42.6%
snowySnowy
75
-28.5%
mistyMisty
07
100%

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

Climate Change Indicators:

Over the past 16 years, Joliet has experienced measurable shifts in key climate parameters, contributing to the current severity score of 62 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

62/100

Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Joliet experienced significant changes:

Temperature change of

+1.48 °C

Variation in annual rainfall

-2.87 %

Change in average humidity

-9.04 %

PM2.5 levels surged by

-25.29 %

Heatwave changed by

+7 Days

Coldwave changed by

-8 Days

Wind speeds changed by

+2.44 km/h

These indicators show a dramatic increase in volatility and worsening conditions. Joliet's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

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

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

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Wed. 5, Aug.
sunnySunny
Temperature Icon32°/20°
Humidity Icon80%
Wind Icon16.6km/h
Thu. 6, Aug.
mistMist
Temperature Icon26°/18°
Humidity Icon92%
Wind Icon11.2km/h
Fri. 7, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/19°
Humidity Icon87%
Wind Icon9.4km/h
Sat. 8, Aug.
sunnySunny
Temperature Icon30°/21°
Humidity Icon87%
Wind Icon18.7km/h
Sun. 9, Aug.
sunnySunny
Temperature Icon30°/19°
Humidity Icon85%
Wind Icon32.8km/h
Mon. 10, Aug.
sunnySunny
Temperature Icon30°/21°
Humidity Icon86%
Wind Icon23.8km/h
Tue. 11, Aug.
mistMist
Temperature Icon25°/21°
Humidity Icon95%
Wind Icon14.8km/h
Wed. 12, Aug.
sunnySunny
Temperature Icon23°/15°
Humidity Icon74%
Wind Icon21.2km/h
Thu. 13, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/18°
Humidity Icon78%
Wind Icon13.7km/h
Fri. 14, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/17°
Humidity Icon79%
Wind Icon13.6km/h
Sat. 15, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/17°
Humidity Icon81%
Wind Icon15.2km/h
Sun. 16, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon28°/18°
Humidity Icon81%
Wind Icon15.9km/h
Mon. 17, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon26°/18°
Humidity Icon84%
Wind Icon15.5km/h
Tue. 18, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/18°
Humidity Icon81%
Wind Icon14km/h
Wed. 19, Aug.
heavy rain at timesHeavy Rain
Temperature Icon28°/18°
Humidity Icon79%
Wind Icon15km/h
Thu. 20, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/18°
Humidity Icon80%
Wind Icon16.8km/h
Fri. 21, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/17°
Humidity Icon81%
Wind Icon15.7km/h
Sat. 22, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/17°
Humidity Icon79%
Wind Icon14.3km/h
Sun. 23, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon28°/17°
Humidity Icon77%
Wind Icon15.6km/h
Mon. 24, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon28°/17°
Humidity Icon76%
Wind Icon17.3km/h
Tue. 25, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon28°/18°
Humidity Icon78%
Wind Icon15.4km/h
Wed. 26, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/18°
Humidity Icon81%
Wind Icon14.9km/h
Thu. 27, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon28°/18°
Humidity Icon79%
Wind Icon15.8km/h
Fri. 28, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/18°
Humidity Icon79%
Wind Icon15.9km/h
Sat. 29, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/17°
Humidity Icon81%
Wind Icon15.6km/h
Sun. 30, Aug.
moderate rain at timesRain
Temperature Icon26°/17°
Humidity Icon79%
Wind Icon14.6km/h
Mon. 31, Aug.
heavy rain at timesHeavy Rain
Temperature Icon27°/17°
Humidity Icon78%
Wind Icon14.7km/h
Tue. 1, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon26°/17°
Humidity Icon78%
Wind Icon15.6km/h
Wed. 2, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon27°/17°
Humidity Icon75%
Wind Icon15.4km/h
Thu. 3, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon28°/17°
Humidity Icon75%
Wind Icon17.3km/h
Fri. 4, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon26°/16°
Humidity Icon76%
Wind Icon16.6km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 5, Aug.

32°C

Low will be onWed. 12, Aug.

15°C

HumidityHumidity

High will be onTue. 11, Aug.

95%

Low will be onWed. 12, Aug.

74%

Wind SpeedWind Speed

High will be onSun. 9, Aug.

32.8km/h

Low will be onFri. 7, Aug.

9.4km/h

PrecipitationPrecipitation

High will be onSun. 9, Aug.

10.2mm

Low will be onSat. 8, Aug.

0.04mm

Ultraviolet IndexUV

High will be onSun. 9, Aug.

8

Low will be onTue. 11, Aug.

5

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