Barometric Pressure in Great Falls, United States 
0000 hPa
00.0 ℃
00.0 m/s
00.0%
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The pressure in Great Falls, Virginia, United States is predicted to slowly drop over the next few hours, with an average pressure of today, which is considered normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Great Falls is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Great Falls hour by hour and stay informed about how it will change over the next 6 hours.
Great Falls has varying air pressure due to changing weather. Low pressure brings rain and clouds, while high pressure brings clear skies.
The area's geography, near mountains and a river, affects air pressure. As air rises over mountains, it cools, and pressure drops, sometimes bringing storms.
In spring, pressure changes bring thunderstorms. Summer has high pressure, warm temperatures, and humidity. Autumn has stable, moderate pressure. Winter brings low pressure, snow, and freezing temperatures.
Great Falls has a humid subtropical climate. This climate type brings hot, humid summers with high pressure and cold, snowy winters with low pressure.