Illiopolis, IL Weather Forecast & Monthly Average Temperatures

TEMPERATURE	83
HUMIDITY	67
PRESSURE	29.97
WIND COND.	170 8.1

Illiopolis Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	24°F	38°F	31°F	6.8"
February	23°F	37°F	29°F	3.4"
March	35°F	56°F	45°F	3.0"
April	43°F	65°F	54°F	4.2"
May	54°F	78°F	66°F	3.1"
June	64°F	86°F	75°F	8.1"
July	65°F	86°F	76°F	4.0"
August	68°F	89°F	78°F	3.9"
September	59°F	85°F	72°F	7.7"
October	49°F	71°F	60°F	7.1"
November	37°F	56°F	45°F	6.1"
December	24°F	37°F	30°F	2.5"

Did you know?

The highest monthly average temperature in Illiopolis for August is 78 degrees.
The lowest monthly average temperature in Illiopolis for February is 29 degrees.
The most monthly precipitation in Illiopolis occurs in June with 8.1 inches.
The air quality index in Illiopolis is 21% better than the national average.
The pollution index in Illiopolis is 1% worse than the national average.

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Illiopolis air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	Illiopolis	Illinois	National
Air quality index	39	41	50
Pollution index	5,136,080	3,347,295	5,066,862

Illiopolis air quality information

Measurement	Total
Days measured	365
Days with good air quality	293
Days with moderate air quality	72
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Illiopolis air quality information

Pollutant	Total
Arsenic	0.010%
Benzene	0.090%
Carbon Tetrachloride	0.010%
Lead	0.390%
Mercury	0.020%

Average monthly Illiopolis temperature with heat index

Illiopolis monthly precipitation with daily maximum

Illiopolis monthly snow depth with daily maximum

Illiopolis monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Broadwell, IL	152	35	30%
Dawson, IL	544	35	30%
Buffalo, IL	503	35	30%
Edinburg, IL	1,156	35	30%
Elkhart, IL	407	35	30%
Illiopolis, IL	822	39	22%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Wagener, SC	822	42	16%
Ivy, VA	822	33	34%
West Chazy, NY	822	36	28%
Rockvale, TN	822	31	38%
Jefferson, WV	822	34	32%
Illiopolis, IL	822	39	22%

Source: The Illiopolis, IL weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.