TODAY MAY18
TEMPERATURE63
HUMIDITY93
PRESSURE30.13
WIND COND.110 13
  • 7062Tue80%40%
  • 8164Wed30%
  • 8364Thu
  • 8465Fri
  • 8666Sat
daynightWeather update from Logan County Airport at

Key findings

  • The highest monthly average temperature in Latham for July is 75.7 degrees
  • The lowest monthly average temperature in Latham for January is 27.8 degrees
  • The most monthly precipitation in Latham occurs in September with 11.5 inches
  • The air quality index in Latham is 12% better than the national average
  • The pollution index in Latham is 75% better than the national average

Compare Latham, IL Weather

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      Latham 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
      January20°F37°F28°F2.6"
      February21°F39°F29°F3.2"
      March34°F55°F43°F4.1"
      April44°F67°F55°F6.7"
      May54°F76°F65°F4.6"
      June63°F85°F74°F8.5"
      July66°F87°F76°F11.2"
      August64°F86°F74°F8.1"
      September56°F80°F67°F11.5"
      October46°F68°F56°F6.3"
      November34°F54°F43°F5.1"
      December25°F40°F32°F5.3"

      Latham 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.
      IndexLathamIllinoisNational
      Air quality index444150
      Pollution index1,277,8903,347,2955,066,862

      Latham air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality255
      Days with moderate air quality110
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Latham air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.050%
      Carbon Tetrachloride0.000%
      Lead0.010%
      Mercury0.002%

      Average monthly Latham temperature with heat index

      Latham monthly precipitation with daily maximum

      Latham monthly snow depth with daily maximum

      Latham monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Mechanicsburg, IL6234020%
      Broadwell, IL1524020%
      Lincoln, IL14,2534020%
      Cornland, IL704020%
      Buffalo, IL5034020%
      Latham, IL2974412%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Saddle Rock Estates, NY297512%
      Hudson, SD2973628%
      Cofield, NC2970100%
      Malcom, IA2973922%
      Valle Crucis, NC2972648%
      Latham, IL2974412%
      Source: The Latham, 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.