TODAY MAR04
TEMPERATURE39
HUMIDITY79
PRESSURE30.31
WIND COND.50 22.3
  • 4825Fri
  • 4928Sat
  • 5537Sun
  • 6044Mon
  • 6451Tue
daynightWeather update from University of Illinois - Willard at

Key findings

  • The highest monthly average temperature in Longview for August is 75 degrees
  • The lowest monthly average temperature in Longview for February is 26 degrees
  • The most monthly precipitation in Longview occurs in November with 7.3 inches
  • The air quality index in Longview is 16% better than the national average
  • The pollution index in Longview is 71% better than the national average

Compare Longview, IL Weather

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      Longview 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"

      Longview 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.
      IndexLongviewIllinoisNational
      Air quality index424150
      Pollution index1,494,1603,347,2955,066,862

      Longview air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality281
      Days with moderate air quality84
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Longview air quality information

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

      Average monthly Longview temperature with heat index

      Longview monthly precipitation with daily maximum

      Longview monthly snow depth with daily maximum

      Longview monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Arcola, IL2,8814216%
      Philo, IL1,6274216%
      Pesotum, IL5144216%
      Savoy, IL8,1184216%
      Hindsboro, IL3494216%
      Longview, IL1374216%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Arctic Village, AK1373824%
      Gorham, IL1374314%
      Glencoe, OH1373922%
      Aullville, MO137476%
      Hunnewell, MO1374118%
      Longview, IL1374216%
      Source: The Longview, 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.