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      Extreme Heat Warning
      until 8:00 PM CDT
      Elev 597 ft, 38.781 °N 90.711 °W

      O'Fallon, MO

      O'Fallon Station94°

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp898498
      Low Temp746146
      Day Average Temp78.1--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation03.5-
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point72.2--
      High74--
      Low71--
      Average72.2--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed8--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure29.43--
      Astronomy Day Length Rise Set
      Actual Time12h 51m6:35 AM7:26 PM
      Civil Twilight6:08 AM7:53 PM
      Nautical Twilight5:36 AM8:25 PM
      Astronomical Twilight5:03 AM8:58 PM
      Moon: Waning crescent-3:59 PM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      12:54 AM 76 °F 73 °F 91 % CALM 0 mph - 29.43 in 0 in Mostly Cloudy
      1:54 AM 76 °F 74 °F 94 % CALM 0 mph - 29.42 in 0 in Partly Cloudy
      2:54 AM 76 °F 73 °F 91 % CALM 0 mph - 29.42 in 0 in Fair
      3:54 AM 74 °F 72 °F 93 % CALM 0 mph - 29.41 in 0 in Fair
      4:54 AM 74 °F 72 °F 93 % CALM 0 mph - 29.41 in 0 in Fair
      5:54 AM 74 °F 72 °F 93 % CALM 0 mph - 29.41 in 0 in Fair
      6:54 AM 76 °F 71 °F 85 % CALM 0 mph - 29.42 in 0 in Fair
      7:54 AM 81 °F 72 °F 74 % CALM 0 mph - 29.43 in 0 in Fair
      8:54 AM 85 °F 71 °F 63 % W 8 mph - 29.45 in 0 in Fair
      9:54 AM 89 °F 72 °F 57 % W 6 mph - 29.45 in 0 in Fair
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