Barometric Pressure in Merrillville, United States 
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The pressure in Merrillville, Indiana, United States is predicted to slowly drop over the next few hours, with an average pressure of 984.8 hPa today, which is lower than normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Merrillville is 10.7 hPa, with a low of 979.3 hPa and a high of 990 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Merrillville hour by hour and stay informed about how it will change over the next 6 hours.
The barometric pressure in Merrillville, Indiana fluctuates throughout the day. It is influenced by changes in weather patterns and temperature. Pressure changes can cause changes in weather.
Merrillville is surrounded by flat plains to the north and rolling hills to the south. This varied landscape affects the movement of air masses. Air moves freely over the plains, but is disrupted by the hills. As a result, the atmospheric pressure in Merrillville is affected by these geographical features.