TODAY DEC22
TEMPERATURE24
HUMIDITY88
PRESSURE102980
WIND COND.
  • 4534Sun
  • 4838Mon50%
  • 4739Tue40%70%
  • 504240%20%
  • 5748Thu30%60%
daynightWeather update from St. Louis Downtown Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Festus for August is 79.4 degrees
  • The lowest monthly average temperature in Festus for February is 33 degrees
  • The most monthly precipitation in Festus occurs in January with 11.3 inches
  • The air quality index in Festus is 28% worse than the national average
  • The pollution index in Festus is 72% better than the national average

Compare Festus, MO Weather

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      Festus 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
      January28°F43°F35°F11.3"
      February26°F43°F33°F3.1"
      March39°F61°F49°F5.3"
      April45°F68°F56°F5.9"
      May56°F80°F68°F4.4"
      June65°F88°F76°F4.0"
      July67°F88°F77°F9.1"
      August69°F91°F79°F7.4"
      September60°F84°F71°F8.8"
      October48°F72°F59°F4.0"
      November37°F59°F47°F8.5"
      December27°F42°F34°F3.1"

      Festus 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.
      IndexFestusMissouriNational
      Air quality index549742
      Pollution index753,4731,630,2552,726,193

      Festus air quality

      MeasurementTotal
      Days measured365
      Days with good air quality134
      Days with moderate air quality221
      Days w/ poor A.Q. for sensitive groups8
      Days with unhealthy air quality2

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.020%
      Mercury0.020%

      Average monthly Festus temperature with heat index

      Festus monthly precipitation with daily maximum

      Festus monthly snow depth with daily maximum

      Festus monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      LaBarque Creek, MO1,165548.0%
      Barnhart, MO6,676548.0%
      Cedar Hill, MO1,625548.0%
      Herculaneum, MO4,081548.0%
      Pevely, MO5,937548.0%
      Festus, MO12,054548.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Londonderry, NH12,0533726.0%
      Scotts Valley, CA12,0553530.0%
      Cheval, FL12,0524314.0%
      Enumclaw, WA12,0624510.0%
      Brookhaven, MS12,0454412.0%
      Festus, MO12,054548.0%
      Source: The Festus, MO 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.