TODAY MAY26
TEMPERATURE68
HUMIDITY84
PRESSURE
WIND COND.
  • 8059
  • 7955Tue
  • 7853Wed
  • 7957Thu
  • 8060Fri30%30%
daynightWeather update from St. Louis, Spirit Of St. Louis Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Hillsboro for July is 78.7 degrees
  • The lowest monthly average temperature in Hillsboro for January is 32.1 degrees
  • The most monthly precipitation in Hillsboro occurs in April with 5.3 inches
  • The air quality index in Hillsboro is 28% worse than the national average
  • The pollution index in Hillsboro is 72% better than the national average

Compare Hillsboro, MO Weather

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      Hillsboro 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"

      Hillsboro 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.
      IndexHillsboroMissouriNational
      Air quality index549742
      Pollution index753,4731,630,2552,726,193

      Hillsboro air quality information

      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

      Hillsboro air quality information

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

      Average monthly Hillsboro temperature with heat index

      Hillsboro monthly precipitation with daily maximum

      Hillsboro monthly snow depth with daily maximum

      Hillsboro 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 Lakes, MO345548.0%
      Herculaneum, MO4,081548.0%
      Pevely, MO5,937548.0%
      Hillsboro, MO3,251548.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Wilbraham, MA3,2514020.0%
      Mount Shasta, CA3,2504216.0%
      Skippers Corner, NC3,2503432.0%
      Pottsville, AR3,2523824.0%
      Lockport, LA3,2524118.0%
      Hillsboro, MO3,251548.0%
      Source: The Hillsboro, 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.