Barometric Pressure in Gaithersburg, United States 
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The pressure in Gaithersburg, Maryland, United States is predicted to slowly drop over the next few hours, with an average pressure of 997.7 hPa today, which is lower than normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Gaithersburg is 1.5 hPa, with a low of 997.1 hPa and a high of 998.6 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Gaithersburg hour by hour and stay informed about how it will change over the next 6 hours.
Gaithersburg's weather patterns bring changes in air pressure, making it rise and fall. When lows come, pressure drops, and when highs come, pressure rises.
Gaithersburg's elevation, about 500 feet above sea level, affects air pressure. The surrounding hills and valleys also influence pressure changes.
In winter, pressure is usually lower due to cold air. In summer, pressure is higher because of warm air. Spring and fall have more variable pressure.
Gaithersburg has a humid subtropical climate, which means big pressure swings and changing weather that can feel unpredictable and exciting.