TODAY NOV22
TEMPERATURE41
HUMIDITY91
PRESSURE101660
WIND COND.310 18.4
  • 4332Sat
  • 5340Sun
  • 4421Mon
  • 3623Tue
  • 3824Wed
daynightWeather update from Rochelle, Rochelle Municipal-Koritz Field Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Lost Nation for July is 71.5 degrees
  • The lowest monthly average temperature in Lost Nation for January is 21.6 degrees
  • The most monthly precipitation in Lost Nation occurs in October with 7.1 inches
  • The air quality index in Lost Nation is equal to the national average
  • The pollution index in Lost Nation is 23% better than the national average

Compare Lost Nation, IL Weather

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      Lost Nation 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
      January14°F30°F22°F3.8"
      February14°F32°F23°F3.4"
      March29°F48°F37°F4.3"
      April39°F62°F50°F4.5"
      May50°F74°F61°F5.4"
      June59°F81°F70°F6.7"
      July61°F82°F71°F6.0"
      August59°F81°F69°F6.4"
      September51°F76°F63°F3.8"
      October41°F63°F51°F7.1"
      November29°F48°F38°F3.9"
      December19°F34°F26°F3.6"

      Lost Nation 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.
      IndexLost NationIllinoisNational
      Air quality index424142
      Pollution index2,097,7403,148,6942,726,193

      Lost Nation air quality

      MeasurementTotal
      Days measured341
      Days with good air quality240
      Days with moderate air quality100
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.060%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.300%

      Average monthly Lost Nation temperature with heat index

      Lost Nation monthly precipitation with daily maximum

      Lost Nation monthly snow depth with daily maximum

      Lost Nation monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Amboy, IL2,4530100.0%
      Davis Junction, IL2,5744216.0%
      Stillman Valley, IL1,3484216.0%
      Harmon, IL1464216.0%
      Forreston, IL1,3924216.0%
      Lost Nation, IL5704216.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      New Stuyahok, AK5703138.0%
      Our Town, AL570524.0%
      Alford, FL5703530.0%
      Charter Oak, IA5703530.0%
      Roberts, ID5702746.0%
      Lost Nation, IL5704216.0%
      Source: The Lost Nation, 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.