Barometric Pressure in Alton, United States 
Pressure
0000 hPa
Temperature
00.0 ℃
Humidity
00.0%
Wind
00.0 m/s
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Forecast
Hourly Pressure Trends
Track the barometric pressure in Alton 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 Alton for the upcoming days, including daily minimum and maximum readings.
Barometric pressure in Alton, New Hampshire averages around 30.12 inches. This is slightly above the national average. Pressure is usually highest in winter.
Alton is located in a valley surrounded by mountains. The White Mountains are to the north. The Lakes Region is to the south. Mountains surround the city on all sides except east.