Air Density Online

Southern Illinois Raceway in Marion, Illinois
Historical weather information* for Friday, September 20 2019

Powered by Darksky.net. Dates available from 2016-present. Please note that some dates might have incomplete data.


Get current weather for Southern Illinois Raceway.
Track elevation: 486 ft.

General conditions: Partly cloudy throughout the day.

  • Time
  • Temp
  • Hum
  • Uncorrected Barometer
  • Dew Point
  • Grains
  • Wind
  • Air Density
  • Density Altitude
  • Sep 20 12:00 am
  • 66 deg F
  • 90%
  • 29.54 Hg
  • 63 deg F
  • 87.2
  • S 1 mph
  • 95.70 %
  • 1499 ft.
  • Sep 20 1:00 am
  • 67 deg F
  • 84%
  • 29.54 Hg
  • 62 deg F
  • 84.2
  • SW 2 mph
  • 95.58 %
  • 1538 ft.
  • Sep 20 2:00 am
  • 68 deg F
  • 89%
  • 29.55 Hg
  • 65 deg F
  • 92.5
  • SW 1 mph
  • 95.24 %
  • 1659 ft.
  • Sep 20 3:00 am
  • 69 deg F
  • 89%
  • 29.55 Hg
  • 66 deg F
  • 95.8
  • NW 0 mph
  • 94.99 %
  • 1748 ft.
  • Sep 20 4:00 am
  • 68 deg F
  • 92%
  • 29.55 Hg
  • 66 deg F
  • 95.6
  • SW 0 mph
  • 95.19 %
  • 1678 ft.
  • Sep 20 5:00 am
  • 68 deg F
  • 93%
  • 29.57 Hg
  • 66 deg F
  • 96.7
  • SW 1 mph
  • 95.21 %
  • 1673 ft.
  • Sep 20 6:00 am
  • 67 deg F
  • 94%
  • 29.57 Hg
  • 65 deg F
  • 94.3
  • S 3 mph
  • 95.46 %
  • 1584 ft.
  • Sep 20 7:00 am
  • 68 deg F
  • 100%
  • 29.59 Hg
  • 68 deg F
  • 104.0
  • SE 3 mph
  • 95.13 %
  • 1699 ft.
  • Sep 20 8:00 am
  • 71 deg F
  • 96%
  • 29.61 Hg
  • 70 deg F
  • 110.7
  • SE 4 mph
  • 94.52 %
  • 1918 ft.
  • Sep 20 9:00 am
  • 76 deg F
  • 84%
  • 29.62 Hg
  • 71 deg F
  • 114.7
  • S 8 mph
  • 93.58 %
  • 2256 ft.
  • Sep 20 10:00 am
  • 79 deg F
  • 74%
  • 29.62 Hg
  • 70 deg F
  • 111.5
  • SW 8 mph
  • 93.12 %
  • 2421 ft.
  • Sep 20 11:00 am
  • 81 deg F
  • 69%
  • 29.63 Hg
  • 70 deg F
  • 110.9
  • SE 7 mph
  • 92.81 %
  • 2532 ft.
  • Sep 20 12:00 pm
  • 83 deg F
  • 66%
  • 29.62 Hg
  • 71 deg F
  • 113.3
  • SW 9 mph
  • 92.41 %
  • 2677 ft.
  • Sep 20 1:00 pm
  • 84 deg F
  • 62%
  • 29.62 Hg
  • 70 deg F
  • 109.8
  • SW 7 mph
  • 92.31 %
  • 2716 ft.
  • Sep 20 2:00 pm
  • 85 deg F
  • 59%
  • 29.60 Hg
  • 69 deg F
  • 108.0
  • SW 8 mph
  • 92.11 %
  • 2787 ft.
  • Sep 20 3:00 pm
  • 87 deg F
  • 56%
  • 29.58 Hg
  • 69 deg F
  • 109.4
  • SW 8 mph
  • 91.67 %
  • 2948 ft.
  • Sep 20 4:00 pm
  • 87 deg F
  • 55%
  • 29.57 Hg
  • 69 deg F
  • 107.4
  • SW 7 mph
  • 91.67 %
  • 2946 ft.
  • Sep 20 5:00 pm
  • 85 deg F
  • 60%
  • 29.58 Hg
  • 70 deg F
  • 109.9
  • SW 7 mph
  • 92.00 %
  • 2827 ft.
  • Sep 20 6:00 pm
  • 80 deg F
  • 73%
  • 29.60 Hg
  • 71 deg F
  • 113.8
  • SW 4 mph
  • 92.85 %
  • 2517 ft.
  • Sep 20 7:00 pm
  • 76 deg F
  • 85%
  • 29.61 Hg
  • 71 deg F
  • 116.1
  • NW 3 mph
  • 93.50 %
  • 2283 ft.
  • Sep 20 8:00 pm
  • 74 deg F
  • 91%
  • 29.62 Hg
  • 71 deg F
  • 116.2
  • NW 4 mph
  • 93.91 %
  • 2136 ft.
  • Sep 20 9:00 pm
  • 73 deg F
  • 93%
  • 29.64 Hg
  • 71 deg F
  • 114.8
  • NW 4 mph
  • 94.16 %
  • 2047 ft.
  • Sep 20 10:00 pm
  • 73 deg F
  • 88%
  • 29.62 Hg
  • 69 deg F
  • 108.5
  • SW 4 mph
  • 94.25 %
  • 2015 ft.
  • Sep 20 11:00 pm
  • 73 deg F
  • 85%
  • 29.61 Hg
  • 68 deg F
  • 104.8
  • SE 5 mph
  • 94.28 %
  • 2003 ft.
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Please note that basic weather data used here is obtained from third party weather providers. As a result, the weather information provided cannot be guaranteed by airdensityonline.com. Airdensityonline.com is not a representative of any third party weather providers.


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