TODAY FEB27
TEMPERATURE34
HUMIDITY97
PRESSURE29.85
WIND COND.190 9.4
  • 5437Sat
  • 5424Sun
  • 4017Mon
  • 4531Tue
  • 5131Wed
daynightWeather update from Lewis University Airport at

Key findings

  • The highest monthly average temperature in Crest Hill for July is 73 degrees
  • The lowest monthly average temperature in Crest Hill for January is 24 degrees
  • The most monthly precipitation in Crest Hill occurs in August with 7.7 inches
  • The air quality index in Crest Hill is 11% worse than the national average
  • The pollution index in Crest Hill is 69% better than the national average

Compare Crest Hill, IL Weather

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      Crest Hill 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
      January17°F32°F24°F3.1"
      February18°F34°F26°F3.0"
      March31°F49°F39°F5.2"
      April40°F62°F50°F4.8"
      May51°F73°F61°F5.9"
      June60°F82°F70°F6.7"
      July64°F84°F73°F4.1"
      August62°F82°F71°F7.7"
      September55°F76°F65°F3.2"
      October44°F64°F53°F7.3"
      November33°F50°F41°F3.9"
      December22°F36°F29°F3.7"

      Crest Hill 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.
      IndexCrest HillIllinoisNational
      Air quality index554150
      Pollution index1,558,0703,347,2955,066,862

      Crest Hill air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality121
      Days with moderate air quality227
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality1

      Crest Hill air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.010%
      Carbon Tetrachloride0.070%
      Lead0.090%
      Mercury0.010%

      Average monthly Crest Hill temperature with heat index

      Crest Hill monthly precipitation with daily maximum

      Crest Hill monthly snow depth with daily maximum

      Crest Hill monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Oswego, IL33,2450100%
      Channahon, IL12,3290100%
      Elwood, IL2,1440100%
      Shorewood, IL16,5390100%
      Minooka, IL11,7860100%
      Crest Hill, IL20,3165510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Lexington, SC20,3154314%
      Parma Heights, OH20,31150= 100
      Mililani Mauka, HI20,3223040%
      Schofield Barracks, HI20,3303040%
      Hauppauge, NY20,3014314%
      Crest Hill, IL20,3165510%
      Source: The Crest Hill, 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.