TODAY NOV21
TEMPERATURE45
HUMIDITY81
PRESSURE100270.97
WIND COND.320 13
  • 4032Fri70%50%
  • 5038Sat
  • 5133Sun
  • 5642Mon
  • 5534Tue
daynightWeather update from Brandywine Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Exton for July is 75 degrees
  • The lowest monthly average temperature in Exton for February is 29.3 degrees
  • The most monthly precipitation in Exton occurs in April with 11.6 inches
  • The air quality index in Exton is equal to the national average
  • The pollution index in Exton is 20% better than the national average

Compare Exton, PA Weather

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      Exton 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
      January25°F41°F33°F5.6"
      February21°F38°F29°F4.6"
      March29°F50°F39°F6.9"
      April40°F63°F51°F11.6"
      May48°F73°F61°F2.5"
      June61°F83°F72°F4.5"
      July65°F86°F75°F7.2"
      August65°F86°F75°F6.7"
      September56°F82°F69°F1.6"
      October49°F70°F59°F9.8"
      November35°F55°F44°F4.7"
      December26°F41°F33°F5.6"

      Exton 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.
      IndexExtonPennsylvaniaNational
      Air quality index424542
      Pollution index2,169,6004,584,8052,726,193

      Exton air quality

      MeasurementTotal
      Days measured365
      Days with good air quality279
      Days with moderate air quality80
      Days w/ poor A.Q. for sensitive groups5
      Days with unhealthy air quality1

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.030%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.004%

      Average monthly Exton temperature with heat index

      Exton monthly precipitation with daily maximum

      Exton monthly snow depth with daily maximum

      Exton monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Eagleview, PA1,8804216.0%
      Caln, PA1,3354216.0%
      Downingtown, PA8,0124216.0%
      New Morgan, PA1054216.0%
      South Coatesville, PA1,5594216.0%
      Exton, PA6,0794216.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Pass Christian, MS6,0794216.0%
      University at Buffalo, NY6,0793922.0%
      Newberry, FL6,0813530.0%
      Pictou, Subd. B, NS6,082n/a 
      Sainte-Martine, QC6,075n/a 
      Exton, PA6,0794216.0%
      Source: The Exton, PA 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.