TODAY MAY29
TEMPERATURE66
HUMIDITY100
PRESSURE29.89
WIND COND.120 4.7
  • 7452Fri20%
  • 7356Sat
  • 7556Sun
  • 7663Mon
  • 8769Tue
daynightWeather update from St. Louis Regional Airport at
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Brighton 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
January24°F41°F31°F3.4"
February25°F43°F33°F3.7"
March38°F57°F46°F3.1"
April47°F68°F56°F6.6"
May56°F76°F65°F6.1"
June65°F85°F75°F3.5"
July67°F87°F77°F7.3"
August66°F86°F75°F6.8"
September58°F80°F68°F4.4"
October47°F68°F57°F6.7"
November36°F56°F45°F4.9"
December28°F43°F35°F6.3"

Did you know?

  • The highest monthly average temperature in Brighton for July is 77 degrees.
  • The lowest monthly average temperature in Brighton for January is 31 degrees.
  • The most monthly precipitation in Brighton occurs in July with 7.3 inches.
  • The air quality index in Brighton is 21% worse than the national average.
  • The pollution index in Brighton is 75% worse than the national average.

Compare Brighton, IL Weather To Other Cities

      vs

      Brighton 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.
      IndexBrightonIllinoisNational
      Air quality index604150
      Pollution index8,870,2303,347,2955,066,862

      Brighton air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality99
      Days with moderate air quality231
      Days w/ poor A.Q. for sensitive groups33
      Days with unhealthy air quality2

      Brighton air quality information

      PollutantTotal
      Arsenic0.180%
      Benzene0.060%
      Carbon Tetrachloride0.020%
      Lead0.030%
      Mercury0.120%

      Average monthly Brighton temperature with heat index

      Brighton monthly precipitation with daily maximum

      Brighton monthly snow depth with daily maximum

      Brighton monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Chesterfield, IL3363530%
      Bethalto, IL9,3646020%
      East Alton, IL6,1716020%
      Holiday Shores, IL2,7856020%
      Otterville, IL896020%
      Brighton, IL2,3166020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Watchtower, NY2,3163628%
      South Roxana, IL2,3166020%
      Trenton, FL2,3153334%
      Pecatonica, IL2,3153138%
      Fredonia, KS2,3172354%
      Brighton, IL2,3166020%
      Source: The Brighton, 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.