TODAY NOV21
TEMPERATURE37
HUMIDITY81
PRESSURE101800
WIND COND.
  • 4727Fri
  • 5238Sat
  • 6345Sun
  • 5327Mon20%
  • 4228Tue
daynightWeather update from Washington Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Foristell for July is 78.7 degrees
  • The lowest monthly average temperature in Foristell for January is 32.1 degrees
  • The most monthly precipitation in Foristell occurs in April with 5.3 inches
  • The air quality index in Foristell is 28% worse than the national average
  • The pollution index in Foristell is 12% worse than the national average

Compare Foristell, MO Weather

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      Foristell 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
      January23°F44°F32°F2.1"
      February25°F46°F35°F1.8"
      March36°F60°F47°F3.7"
      April46°F71°F58°F5.3"
      May55°F78°F66°F4.5"
      June65°F87°F76°F4.8"
      July68°F90°F79°F2.9"
      August66°F89°F77°F3.4"
      September58°F82°F69°F3.9"
      October46°F70°F57°F3.0"
      November36°F59°F46°F2.8"
      December27°F45°F35°F3.1"

      Foristell 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.
      IndexForistellMissouriNational
      Air quality index549742
      Pollution index3,042,5301,630,2552,726,193

      Foristell 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
      Arsenic0.010%
      Benzene0.040%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.001%

      Average monthly Foristell temperature with heat index

      Foristell monthly precipitation with daily maximum

      Foristell monthly snow depth with daily maximum

      Foristell monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Truxton, MO1443824.0%
      Pendleton, MO323922.0%
      New Haven, MO2,8193922.0%
      Hawk Point, MO522548.0%
      Innsbrook, MO843548.0%
      Foristell, MO881548.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lewisville, AR8813922.0%
      Lompico, CA8813530.0%
      Papaikou, HI8811668.0%
      Coulterville, IL8814314.0%
      Arnold, NE8811962.0%
      Foristell, MO881548.0%
      Source: The Foristell, 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.