Barometric Pressure
Barometric Pressure in City of Saint Peters, 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 City of Saint Peters hour by hour across the next 6 hourly readings.
In Saint Peters, Missouri, air pressure changes because of temperature and humidity. When it's hot, air expands and pressure goes down. When it's cold, air contracts and pressure goes up.