Barometric Pressure in Great Falls, United States 
1015.1 hPa
18.8 ℃
64%
3.36 m/s
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The average pressure in Great Falls, Virginia, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fine, possible showers
Rapid Pressure Changes
Rapid pressure changes detected in Great Falls, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
- Rapid Rise : ()
- Rapid Rise : ()
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 across the next 6 hourly readings.
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.