Barometric Pressure in Annandale, United States 
0000 hPa
00.0 ℃
00.0 m/s
00.0%
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The pressure in Annandale, Virginia, United States is predicted to drop over the next few hours, with an average pressure of 1000.4 hPa today, which is lower than normal.
Weather prediction: Expect wet, unsettled weather and a strong breeze
The daily total fluctuation in pressure in Annandale is 3.6 hPa, with a low of 998.6 hPa and a high of 1002.2 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Annandale hour by hour and stay informed about how it will change over the next 6 hours.
The barometric pressure in Annandale, Virginia varies throughout the day. It changes depending on the movement of high and low-pressure systems. These systems bring different types of weather to the area.
Annandale is located near the Piedmont region. This region is a gentler slope between the Appalachian Mountains and the Atlantic Coastal Plain. The surrounding landscape affects the atmospheric pressure.
The mountains to the west influence the pressure. They block or redirect air masses moving from the west. This can lead to changes in the pressure. The coastal plain to the east has a different effect. It allows air from the ocean to move freely into the area.