Barometric Pressure in Alton, United States 
Pressure
1013 hPa
Temperature
15.0 ℃
Humidity
50%
Wind
3.0 m/s
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Forecast
Hourly Pressure Trends
Track the barometric pressure in Alton hour by hour across the next 6 hourly 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.