TODAY DEC16
TEMPERATURE31
HUMIDITY92
PRESSURE30.16
WIND COND.230 3.4
  • 4225Mon
  • 4431Tue
  • 4738Wed
  • 4231Thu
  • 3827Fri
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 86% better than the national average.

Real Estate Listings In Eureka

Compare Eureka, IL Weather To Other Cities

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.
Danvers, IL1,2913628%
Goodfield, IL9313628%
Carlock, IL5833628%
Heritage Lake, IL1,4823628%
Minonk, IL2,1513628%
Eureka, IL5,827484%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Norwood, NJ5,828536%
Progreso, TX5,8263628%
Carrizo Springs, TX5,828285470%
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.