Air Density Online

Marshalltown Speedway in Marshalltown, Iowa
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 Marshalltown Speedway.
Track elevation: 935 ft.

General conditions: Clear throughout the day.

  • Time
  • Temp
  • Hum
  • Uncorrected Barometer
  • Dew Point
  • Grains
  • Wind
  • Air Density
  • Density Altitude
  • Sep 20 12:00 am
  • 68 deg F
  • 96%
  • 29.01 Hg
  • 67 deg F
  • 101.8
  • SE 4 mph
  • 93.30 %
  • 2354 ft.
  • Sep 20 1:00 am
  • 67 deg F
  • 97%
  • 29.02 Hg
  • 66 deg F
  • 99.3
  • SE 3 mph
  • 93.56 %
  • 2260 ft.
  • Sep 20 2:00 am
  • 68 deg F
  • 97%
  • 29.03 Hg
  • 67 deg F
  • 102.8
  • SE 3 mph
  • 93.35 %
  • 2336 ft.
  • Sep 20 3:00 am
  • 68 deg F
  • 97%
  • 29.02 Hg
  • 67 deg F
  • 102.8
  • SE 2 mph
  • 93.33 %
  • 2344 ft.
  • Sep 20 4:00 am
  • 67 deg F
  • 99%
  • 29.02 Hg
  • 67 deg F
  • 101.4
  • SE 4 mph
  • 93.51 %
  • 2278 ft.
  • Sep 20 5:00 am
  • 68 deg F
  • 97%
  • 29.01 Hg
  • 67 deg F
  • 102.9
  • SE 5 mph
  • 93.30 %
  • 2357 ft.
  • Sep 20 6:00 am
  • 67 deg F
  • 98%
  • 29.02 Hg
  • 67 deg F
  • 100.3
  • SE 4 mph
  • 93.55 %
  • 2267 ft.
  • Sep 20 7:00 am
  • 67 deg F
  • 99%
  • 29.03 Hg
  • 67 deg F
  • 101.3
  • SE 5 mph
  • 93.55 %
  • 2264 ft.
  • Sep 20 8:00 am
  • 67 deg F
  • 99%
  • 29.05 Hg
  • 67 deg F
  • 101.3
  • SE 5 mph
  • 93.61 %
  • 2244 ft.
  • Sep 20 9:00 am
  • 72 deg F
  • 98%
  • 29.07 Hg
  • 71 deg F
  • 119.4
  • E 4 mph
  • 92.42 %
  • 2675 ft.
  • Sep 20 10:00 am
  • 76 deg F
  • 86%
  • 29.07 Hg
  • 72 deg F
  • 119.8
  • SE 7 mph
  • 91.73 %
  • 2926 ft.
  • Sep 20 11:00 am
  • 78 deg F
  • 80%
  • 29.06 Hg
  • 71 deg F
  • 119.1
  • SE 8 mph
  • 91.37 %
  • 3056 ft.
  • Sep 20 12:00 pm
  • 80 deg F
  • 75%
  • 29.04 Hg
  • 71 deg F
  • 119.3
  • SE 9 mph
  • 90.97 %
  • 3205 ft.
  • Sep 20 1:00 pm
  • 84 deg F
  • 66%
  • 29.03 Hg
  • 71 deg F
  • 119.6
  • SE 11 mph
  • 90.25 %
  • 3470 ft.
  • Sep 20 2:00 pm
  • 85 deg F
  • 63%
  • 29.00 Hg
  • 71 deg F
  • 117.9
  • SE 11 mph
  • 90.05 %
  • 3545 ft.
  • Sep 20 3:00 pm
  • 86 deg F
  • 57%
  • 28.97 Hg
  • 69 deg F
  • 110.1
  • SE 11 mph
  • 89.94 %
  • 3584 ft.
  • Sep 20 4:00 pm
  • 87 deg F
  • 55%
  • 28.96 Hg
  • 69 deg F
  • 109.7
  • SE 12 mph
  • 89.76 %
  • 3653 ft.
  • Sep 20 5:00 pm
  • 87 deg F
  • 50%
  • 28.96 Hg
  • 66 deg F
  • 99.5
  • SE 10 mph
  • 89.95 %
  • 3583 ft.
  • Sep 20 6:00 pm
  • 85 deg F
  • 53%
  • 28.95 Hg
  • 66 deg F
  • 99.0
  • SE 7 mph
  • 90.27 %
  • 3463 ft.
  • Sep 20 7:00 pm
  • 81 deg F
  • 64%
  • 28.96 Hg
  • 68 deg F
  • 105.1
  • SE 5 mph
  • 90.84 %
  • 3253 ft.
  • Sep 20 8:00 pm
  • 77 deg F
  • 75%
  • 28.97 Hg
  • 69 deg F
  • 108.1
  • SE 5 mph
  • 91.48 %
  • 3016 ft.
  • Sep 20 9:00 pm
  • 75 deg F
  • 80%
  • 28.97 Hg
  • 69 deg F
  • 107.9
  • SE 6 mph
  • 91.82 %
  • 2892 ft.
  • Sep 20 10:00 pm
  • 74 deg F
  • 81%
  • 28.96 Hg
  • 68 deg F
  • 105.6
  • SE 7 mph
  • 92.03 %
  • 2815 ft.
  • Sep 20 11:00 pm
  • 74 deg F
  • 85%
  • 28.96 Hg
  • 69 deg F
  • 111.0
  • SE 6 mph
  • 91.90 %
  • 2865 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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