TODAY MAY23
TEMPERATURE49
HUMIDITY100
PRESSURE30.12
WIND COND.
  • 6650Wed
  • 7257Thu
  • 8561Fri
  • 8561Sat
  • 8459Sun
daynightWeather update from Chicago/Waukegan Regional Airport at

Zion Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January-19°F64°F25°F1.6"
February-11°F60°F25°F1.7"
March9°F78°F35°F2.6"
April21°F84°F47°F3.2"
May32°F91°F56°F3.0"
June37°F95°F67°F3.8"
July48°F100°F71°F2.5"
August48°F98°F71°F4.4"
September37°F93°F64°F3.6"
October25°F87°F52°F3.7"
November12°F72°F41°F1.4"
December-8°F59°F27°F2.7"

Did you know?

  • The highest monthly average temperature in Zion for July is 71 degrees.
  • The lowest monthly average temperature in Zion for February is 25 degrees.
  • The most monthly precipitation in Zion occurs in August with 4.4 inches.
  • The air quality index in Zion is 29% better than the national average.
  • The pollution index in Zion is 38% better than the national average.

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Compare Zion, IL Weather To Other Cities

Zion 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.
IndexZionIllinoisNational
Air quality index354150
Pollution index3,131,7003,347,2955,066,862

Zion air quality information

MeasurementTotal
Days measured189
Days with good air quality178
Days with moderate air quality11
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Zion air quality information

PollutantTotal
Arsenic0.010%
Benzene0.030%
Carbon Tetrachloride0.010%
Lead0.004%
Mercury0.360%

Average monthly Zion temperature with heat index

Zion monthly precipitation with daily maximum

Zion monthly snow depth with daily maximum

Zion monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Antioch, IL14,3423530%
Grandwood Park, IL5,4713530%
Hainesville, IL3,6713530%
Lake Villa, IL8,9163530%
Park City, IL7,4023530%
Zion, IL24,1953530%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Fairland, MD24,201492%
Selma, CA24,2286836%
Vero Beach South, FL24,2343432%
Staunton, VA24,2343334%
North Potomac, MD24,148492%
Zion, IL24,1953530%
Source: The Zion, 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.