Barometric Pressure in Valley Forge, United States 
1017.6 hPa
14.6 ℃
94%
0.41 m/s
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The average pressure in Valley Forge, Pennsylvania, United States today is , which is considered normal. Pressure is trending steady.
Weather prediction: Changeable, mending
The daily total fluctuation in pressure in Valley Forge is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Valley Forge hour by hour across the next 6 hourly readings.
Valley Forge has changing air pressure due to its location near mountains. Weather patterns bring low pressure with rain and high pressure with clear skies.
The area's geography, with nearby mountains, affects air pressure. As air rises over mountains, it cools and creates low pressure.
In winter, high pressure brings cold air and sometimes snow. Low pressure brings rain or snow. Summer has low pressure with thunderstorms and high pressure with heatwaves.
Valley Forge has a humid subtropical climate. This climate type means it experiences extreme temperature and pressure changes. It gets hot and humid in summer with high pressure, and cold with low pressure in winter.