TODAY DEC07
TEMPERATURE24
HUMIDITY92
PRESSURE30.36
WIND COND.
  • 4032Sat
  • 4540Sun50%
  • 4418Mon60%50%
  • 224Tue
  • 146Wed
daynightWeather update from De Kalb Taylor Municipal Airport at
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Union Average Temperature

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
January16°F31°F23°F2.8"
February17°F32°F24°F2.8"
March30°F47°F37°F4.6"
April39°F61°F49°F5.8"
May50°F72°F60°F5.3"
June59°F80°F69°F5.6"
July63°F82°F72°F5.8"
August61°F81°F70°F5.9"
September54°F75°F63°F3.7"
October43°F63°F52°F5.8"
November32°F49°F39°F4.0"
December21°F34°F27°F3.1"

Did you know?

  • The highest monthly average temperature in Union for July is 72 degrees.
  • The lowest monthly average temperature in Union for January is 23 degrees.
  • The most monthly precipitation in Union occurs in August with 5.9 inches.
  • The air quality index in Union is 38% better than the national average.
  • The pollution index in Union is 89% better than the national average.

Compare Union, IL Weather To Other Cities

Union 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.
IndexUnionIllinoisNational
Air quality index314150
Pollution index543,5163,347,2955,066,862

Union air quality information

MeasurementTotal
Days measured365
Days with good air quality339
Days with moderate air quality26
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Union air quality information

PollutantTotal
Arsenic0.000%
Benzene0.004%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly Union temperature with heat index

Union monthly precipitation with daily maximum

Union monthly snow depth with daily maximum

Union monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Burlington, IL6343138%
Crystal Lake, IL40,4753138%
Gilberts, IL7,4793138%
Huntley, IL25,8313138%
Capron, IL1,8683138%
Union, IL4843138%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Grand View, ID4843628%
Sale City, GA4844314%
Withee, WI484355610%
Lilesville, NC4844216%
Allen, SD4844314%
Union, IL4843138%
Source: The Union, 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.
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