TODAY MAY25
TEMPERATURE83
HUMIDITY65
PRESSURE29.96
WIND COND.130 12.8
  • 8767Tue30%
  • 8266Wed40%60%
  • 8365Thu50%90%
  • 7654Fri50%
  • 7350Sat
daynightWeather update from University of Illinois - Willard at
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Allerton 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
January22°F36°F29°F6.9"
February19°F34°F26°F3.4"
March33°F54°F42°F3.3"
April41°F65°F52°F5.8"
May52°F78°F65°F3.4"
June63°F85°F74°F6.1"
July63°F83°F73°F5.8"
August65°F86°F75°F5.4"
September57°F83°F69°F7.0"
October46°F69°F57°F5.6"
November33°F53°F42°F7.3"
December21°F35°F27°F3.7"

Did you know?

  • The highest monthly average temperature in Allerton for August is 75 degrees.
  • The lowest monthly average temperature in Allerton for February is 26 degrees.
  • The most monthly precipitation in Allerton occurs in November with 7.3 inches.
  • The air quality index in Allerton is 28% better than the national average.
  • The pollution index in Allerton is 71% better than the national average.

Compare Allerton, IL Weather To Other Cities

      vs

      Allerton 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.
      IndexAllertonIllinoisNational
      Air quality index364150
      Pollution index1,494,1603,347,2955,066,862

      Allerton air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality311
      Days with moderate air quality54
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Allerton air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.040%
      Carbon Tetrachloride0.290%
      Lead0.010%
      Mercury0.010%

      Average monthly Allerton temperature with heat index

      Allerton monthly precipitation with daily maximum

      Allerton monthly snow depth with daily maximum

      Allerton monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Brocton, IL3773628%
      Fairmount, IL6223628%
      Indianola, IL3183628%
      Newman, IL8303628%
      St. Joseph, IL4,1093628%
      Allerton, IL2883628%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Mooreland, IN288365630%
      Banks Lake South, WA2882452%
      Holstein, NE288265430%
      Stone City, IA2884216%
      Glendo, WY2883922%
      Allerton, IL2883628%
      Source: The Allerton, 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.