TODAY JUN07
TEMPERATURE76
HUMIDITY
PRESSURE30.02
WIND COND.
  • 8664Sun
  • 8969Mon
  • 8464Tue50%80%
  • 7658Wed50%40%
  • 7655Thu
daynightWeather update from Peoria - General Downing-Peoria International Airport at
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Eureka 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°F37°F26°F2.3"
February18°F39°F28°F2.1"
March31°F54°F42°F3.1"
April41°F67°F54°F4.7"
May51°F77°F64°F4.4"
June62°F85°F73°F5.4"
July65°F88°F76°F3.4"
August64°F86°F74°F3.5"
September56°F81°F68°F4.1"
October44°F68°F55°F3.4"
November33°F55°F43°F2.9"
December22°F39°F30°F2.7"

Did you know?

  • The highest monthly average temperature in Eureka for July is 76 degrees.
  • The lowest monthly average temperature in Eureka for January is 26 degrees.
  • The most monthly precipitation in Eureka occurs in June with 5.4 inches.
  • The air quality index in Eureka is 3% better than the national average.
  • The pollution index in Eureka is 87% better than the national average.

Compare Eureka, IL Weather To Other Cities

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      Eureka 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.
      IndexEurekaIllinoisNational
      Air quality index484150
      Pollution index672,0313,347,2955,066,862

      Eureka air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality207
      Days with moderate air quality132
      Days w/ poor A.Q. for sensitive groups21
      Days with unhealthy air quality5

      Eureka air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.020%

      Average monthly Eureka temperature with heat index

      Eureka monthly precipitation with daily maximum

      Eureka monthly snow depth with daily maximum

      Eureka monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Congerville, IL5433628%
      Panola, IL493628%
      Danvers, IL1,2913628%
      Goodfield, IL9313628%
      Carlock, IL5833628%
      Eureka, IL5,827484%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Progreso, TX5,8263628%
      Carrizo Springs, TX5,828285470%
      Norwood, NJ5,828536%
      Wailea, HI5,8332844%
      Stratmoor, CO5,8214412%
      Eureka, IL5,827484%
      Source: The Eureka, 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.