Fri, Apr 26th 2024
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The following chart reports hourly Johnston, IA temperature today (Fri, Apr 26th 2024). The lowest temperature reading has been 48.2 degrees fahrenheit at 8:35 AM, while the highest temperature is 53.6 degrees fahrenheit at 12:35 AM.
The following chart shows hourly Johnston, IA humidity today (Fri, Apr 26th 2024). The lowest humidity reading has been 50.37 percent at 12:55 AM, while the highest recorded humidity is 93.5 percent at 9:15 AM.
The following chart outlines hourly Johnston, IA barometric pressure today (Fri, Apr 26th 2024). The lowest barometric pressure reading has been 29.74 inHg at 9:15 AM, while the highest recorded barometric pressure is 29.95 inHg at 12:55 AM.
The following chart displays hourly Johnston, IA wind speed today (Fri, Apr 26th 2024). The lowest wind speed reading has been 10mph at 7:55 AM, while the highest observed wind speed is 19mph at 4:15 AM.
The following chart provides hourly Johnston, IA wind gusts today (Fri, Apr 26th 2024). The lowest wind gust reading has been 16mph at 7:55 AM, while the highest observed wind gust is 30mph at 5:15 AM.
The following chart reports hourly Johnston, IA precipitation today (Fri, Apr 26th 2024). The lowest precipitation recorded has been 0.01in. during the hour of 8:55 AM, while the highest amount is 0.01in. during the hour of 8:55 AM.
The following chart displays hourly Johnston, IA dew points today (Fri, Apr 26th 2024). The lowest dew point reading has been 35.6 degrees fahrenheit at 12:15 AM, while the highest dew point is 48.2 degrees fahrenheit at 9:15 AM.
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This past weather information is provided AS IS and strictly for recreational, educational, and informational purposes only; we disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use the data. The information may be inaccurate or incomplete based on how well the corresponding weather station successfully or unsuccessfully reported or recorded it with the instruments which measured the weather at the time; including gaps between hours or even days. Specifically, LocalConditions.com and this data, as presented, may not and should not be used as a reference for any reason relating to legal proceedings, insurance claims, recovery, loss prevention, making predictions, or critical decisions. Lastly, the weather station may be miles away from the actual area of interest. This data may not be leeched or republished.
Note regarding "Approx. Precipitation / Rain Total"
The "Approx. Precipitation / Rain Total" is calculated in whole based on the last measurement from each hour reported - which is accumulative and reset at the beginning of each hour - ideally. However, some stations reset at the wrong time, such as a few minutes after the hour. We have tried to account for this issue. Most gauges report multiple times per hour. For example, a measurement of precipitation at 8:15am could be 0.04 in. of water - then when a measurement is taken at 8:30am might be 0.06 in. - and at 8:56am might be 0.08 in. So, the accumulative total for that hour would be 0.08 in. - not calculated together to equal 0.18 in. of precipitation. Finally, each hourly total for the day is summed to provide the "Approx. Precipitation / Rain Total" figure.
One other note: if the total is 0, but there was obviously rain - then the instrument is not properly distributing its data from the station. The issue could be temporary or permanent.
Currently
 |
54°F |
29.79in
Barometer 54%
Humidity Southeast 21.9mph Wind |
| Overcast and Breezy | ||