Barometric Pressure in De Witt, United States 
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The pressure in De Witt, Iowa, United States is predicted to slowly rise over the next few hours, with an average pressure of 976.1 hPa today, which is lower than normal.
Weather prediction: Expect more fair, dry, cool weather
The daily total fluctuation in pressure in De Witt is 4.1 hPa, with a low of 974.9 hPa and a high of 979 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in De Witt hour by hour and stay informed about how it will change over the next 6 hours.
De Witt, Iowa has changing air pressure due to weather patterns like high and low-pressure systems that bring different weather.
The city's location in the Midwest, near the Mississippi River, makes it prone to weather systems moving from west to east, affecting air pressure.
In summer, warm air rises, causing low pressure, and thunderstorms are common. In winter, cold air sinks, leading to high pressure and cold snaps.
De Witt has a humid continental climate, with big temperature differences between winter and summer, which affects air pressure and leads to varying weather conditions throughout the year.