Air Density Online

I-90 Speedway in Hartford, South Dakota
Historical weather information* for Saturday, July 31 2021

Powered by Darksky.net. Dates available from 2017-present. Please note that some dates might have incomplete data.


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

General conditions: Partly cloudy throughout the day.

  • Time
  • Temp
  • Hum
  • Uncorrected Barometer
  • Dew Point
  • Grains
  • Wind
  • Air Density
  • Density Altitude
  • Jul 31 12:00 am
  • 61 deg F
  • 90%
  • 28.38 Hg
  • 58 deg F
  • 76.0
  • NE 3 mph
  • 93.03 %
  • 2451 ft.
  • Jul 31 1:00 am
  • 59 deg F
  • 92%
  • 28.38 Hg
  • 57 deg F
  • 72.2
  • NE 3 mph
  • 93.49 %
  • 2286 ft.
  • Jul 31 2:00 am
  • 58 deg F
  • 95%
  • 28.38 Hg
  • 57 deg F
  • 71.9
  • NE 3 mph
  • 93.69 %
  • 2216 ft.
  • Jul 31 3:00 am
  • 58 deg F
  • 96%
  • 28.38 Hg
  • 57 deg F
  • 72.7
  • NW 3 mph
  • 93.67 %
  • 2222 ft.
  • Jul 31 4:00 am
  • 59 deg F
  • 94%
  • 28.38 Hg
  • 57 deg F
  • 73.8
  • NW 3 mph
  • 93.46 %
  • 2299 ft.
  • Jul 31 5:00 am
  • 58 deg F
  • 95%
  • 28.38 Hg
  • 57 deg F
  • 72.0
  • NW 4 mph
  • 93.66 %
  • 2226 ft.
  • Jul 31 6:00 am
  • 56 deg F
  • 96%
  • 28.38 Hg
  • 55 deg F
  • 67.6
  • NW 4 mph
  • 94.11 %
  • 2062 ft.
  • Jul 31 7:00 am
  • 57 deg F
  • 91%
  • 28.39 Hg
  • 54 deg F
  • 66.4
  • NW 4 mph
  • 93.99 %
  • 2105 ft.
  • Jul 31 8:00 am
  • 59 deg F
  • 91%
  • 28.40 Hg
  • 56 deg F
  • 71.4
  • NW 6 mph
  • 93.57 %
  • 2257 ft.
  • Jul 31 9:00 am
  • 63 deg F
  • 90%
  • 28.42 Hg
  • 60 deg F
  • 81.5
  • NW 7 mph
  • 92.69 %
  • 2576 ft.
  • Jul 31 10:00 am
  • 68 deg F
  • 82%
  • 28.42 Hg
  • 62 deg F
  • 88.5
  • NW 9 mph
  • 91.68 %
  • 2945 ft.
  • Jul 31 11:00 am
  • 72 deg F
  • 74%
  • 28.41 Hg
  • 63 deg F
  • 91.6
  • NW 10 mph
  • 90.90 %
  • 3229 ft.
  • Jul 31 12:00 pm
  • 76 deg F
  • 68%
  • 28.40 Hg
  • 65 deg F
  • 96.4
  • NW 11 mph
  • 90.09 %
  • 3528 ft.
  • Jul 31 1:00 pm
  • 79 deg F
  • 65%
  • 28.40 Hg
  • 66 deg F
  • 101.9
  • NW 11 mph
  • 89.48 %
  • 3756 ft.
  • Jul 31 2:00 pm
  • 81 deg F
  • 59%
  • 28.37 Hg
  • 65 deg F
  • 98.8
  • NW 12 mph
  • 89.10 %
  • 3899 ft.
  • Jul 31 3:00 pm
  • 83 deg F
  • 52%
  • 28.35 Hg
  • 64 deg F
  • 92.9
  • NW 12 mph
  • 88.83 %
  • 4000 ft.
  • Jul 31 4:00 pm
  • 82 deg F
  • 47%
  • 28.35 Hg
  • 60 deg F
  • 81.1
  • N 13 mph
  • 89.23 %
  • 3850 ft.
  • Jul 31 5:00 pm
  • 82 deg F
  • 44%
  • 28.34 Hg
  • 58 deg F
  • 75.8
  • N 13 mph
  • 89.33 %
  • 3814 ft.
  • Jul 31 6:00 pm
  • 82 deg F
  • 44%
  • 28.35 Hg
  • 58 deg F
  • 75.8
  • N 12 mph
  • 89.35 %
  • 3804 ft.
  • Jul 31 7:00 pm
  • 81 deg F
  • 45%
  • 28.39 Hg
  • 58 deg F
  • 74.9
  • N 11 mph
  • 89.65 %
  • 3693 ft.
  • Jul 31 8:00 pm
  • 77 deg F
  • 46%
  • 28.39 Hg
  • 55 deg F
  • 67.0
  • N 10 mph
  • 90.50 %
  • 3379 ft.
  • Jul 31 9:00 pm
  • 73 deg F
  • 50%
  • 28.41 Hg
  • 53 deg F
  • 63.6
  • N 8 mph
  • 91.29 %
  • 3087 ft.
  • Jul 31 10:00 pm
  • 69 deg F
  • 54%
  • 28.43 Hg
  • 52 deg F
  • 59.9
  • N 7 mph
  • 92.12 %
  • 2782 ft.
  • Jul 31 11:00 pm
  • 67 deg F
  • 57%
  • 28.44 Hg
  • 51 deg F
  • 59.0
  • NE 7 mph
  • 92.53 %
  • 2635 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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