Air Density Online

I-90 Speedway in Hartford, South Dakota
Historical weather information* for Sunday, July 21 2019

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


Get current weather for I-90 Speedway.
Track elevation: 1613 ft.

General conditions: Mostly cloudy throughout the day.

  • Time
  • Temp
  • Hum
  • Uncorrected Barometer
  • Dew Point
  • Grains
  • Wind
  • Air Density
  • Density Altitude
  • Jul 21 12:00 am
  • 67 deg F
  • 90%
  • 28.30 Hg
  • 64 deg F
  • 94.4
  • NE 6 mph
  • 91.35 %
  • 3066 ft.
  • Jul 21 1:00 am
  • 66 deg F
  • 94%
  • 28.31 Hg
  • 64 deg F
  • 95.2
  • NE 5 mph
  • 91.54 %
  • 2997 ft.
  • Jul 21 2:00 am
  • 65 deg F
  • 91%
  • 28.30 Hg
  • 62 deg F
  • 88.9
  • NE 6 mph
  • 91.81 %
  • 2898 ft.
  • Jul 21 3:00 am
  • 64 deg F
  • 90%
  • 28.29 Hg
  • 61 deg F
  • 84.8
  • NE 4 mph
  • 92.04 %
  • 2811 ft.
  • Jul 21 4:00 am
  • 63 deg F
  • 93%
  • 28.31 Hg
  • 61 deg F
  • 84.6
  • NE 7 mph
  • 92.27 %
  • 2729 ft.
  • Jul 21 5:00 am
  • 62 deg F
  • 92%
  • 28.30 Hg
  • 60 deg F
  • 80.7
  • NE 5 mph
  • 92.52 %
  • 2638 ft.
  • Jul 21 6:00 am
  • 61 deg F
  • 93%
  • 28.34 Hg
  • 59 deg F
  • 78.6
  • NE 6 mph
  • 92.87 %
  • 2512 ft.
  • Jul 21 7:00 am
  • 61 deg F
  • 95%
  • 28.39 Hg
  • 60 deg F
  • 80.2
  • NE 2 mph
  • 92.98 %
  • 2470 ft.
  • Jul 21 8:00 am
  • 63 deg F
  • 91%
  • 28.37 Hg
  • 60 deg F
  • 82.6
  • NE 1 mph
  • 92.52 %
  • 2636 ft.
  • Jul 21 9:00 am
  • 65 deg F
  • 89%
  • 28.38 Hg
  • 62 deg F
  • 86.7
  • NE 3 mph
  • 92.10 %
  • 2790 ft.
  • Jul 21 10:00 am
  • 68 deg F
  • 82%
  • 28.39 Hg
  • 62 deg F
  • 88.6
  • NE 6 mph
  • 91.58 %
  • 2980 ft.
  • Jul 21 11:00 am
  • 71 deg F
  • 76%
  • 28.41 Hg
  • 63 deg F
  • 91.0
  • NE 7 mph
  • 91.07 %
  • 3168 ft.
  • Jul 21 12:00 pm
  • 72 deg F
  • 67%
  • 28.40 Hg
  • 61 deg F
  • 82.8
  • NE 10 mph
  • 91.04 %
  • 3179 ft.
  • Jul 21 1:00 pm
  • 74 deg F
  • 60%
  • 28.39 Hg
  • 59 deg F
  • 79.3
  • NE 7 mph
  • 90.73 %
  • 3294 ft.
  • Jul 21 2:00 pm
  • 75 deg F
  • 56%
  • 28.39 Hg
  • 58 deg F
  • 76.5
  • NE 7 mph
  • 90.63 %
  • 3331 ft.
  • Jul 21 3:00 pm
  • 77 deg F
  • 58%
  • 28.39 Hg
  • 61 deg F
  • 84.8
  • NE 6 mph
  • 90.13 %
  • 3513 ft.
  • Jul 21 4:00 pm
  • 77 deg F
  • 55%
  • 28.41 Hg
  • 60 deg F
  • 80.3
  • NW 6 mph
  • 90.27 %
  • 3462 ft.
  • Jul 21 5:00 pm
  • 73 deg F
  • 69%
  • 28.43 Hg
  • 62 deg F
  • 88.2
  • NW 7 mph
  • 90.86 %
  • 3245 ft.
  • Jul 21 6:00 pm
  • 71 deg F
  • 74%
  • 28.44 Hg
  • 62 deg F
  • 88.4
  • N 8 mph
  • 91.24 %
  • 3104 ft.
  • Jul 21 7:00 pm
  • 71 deg F
  • 76%
  • 28.44 Hg
  • 63 deg F
  • 90.9
  • NE 8 mph
  • 91.19 %
  • 3125 ft.
  • Jul 21 8:00 pm
  • 69 deg F
  • 75%
  • 28.45 Hg
  • 61 deg F
  • 83.6
  • NE 8 mph
  • 91.72 %
  • 2930 ft.
  • Jul 21 9:00 pm
  • 69 deg F
  • 77%
  • 28.46 Hg
  • 62 deg F
  • 85.8
  • NE 5 mph
  • 91.68 %
  • 2944 ft.
  • Jul 21 10:00 pm
  • 66 deg F
  • 83%
  • 28.47 Hg
  • 61 deg F
  • 83.4
  • N 7 mph
  • 92.29 %
  • 2722 ft.
  • Jul 21 11:00 pm
  • 65 deg F
  • 87%
  • 28.48 Hg
  • 61 deg F
  • 84.4
  • N 6 mph
  • 92.50 %
  • 2645 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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