Barometric Pressure in Johnstown, United States 
0000 hPa
00.0 ℃
00.0%
00.0 m/s
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Forecast
Hourly Pressure Trends
Track the barometric pressure in Johnstown hour by hour and stay informed about how it will change over the next 6 hours.
Upcoming Days
Stay informed about the barometric pressure trends in Johnstown for the upcoming days, including daily minimum and maximum readings.
The barometric pressure in Johnstown, Pennsylvania varies throughout the day and night. It changes with the weather patterns that move into the area. This pressure can rise or fall rapidly, causing changes in the weather.
Johnstown is situated in a valley surrounded by mountains. The city's landscape affects the atmospheric pressure. The mountains block or redirect air masses, causing pressure changes. This unique geography contributes to Johnstown's unpredictable weather.
The surrounding mountains also create channels for air to flow through. This can lead to rapid changes in temperature and precipitation. Weather patterns from different directions meet in Johnstown, resulting in varied weather conditions. The city's location makes it prone to sudden weather shifts.