Barometric Pressure in San Tan Valley, United States 
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The pressure in San Tan Valley, Arizona, United States is predicted to slowly rise over the next few hours, with an average pressure of 957.9 hPa today, which is lower than normal.
Weather prediction: Expect more fair, dry, cool weather
The daily total fluctuation in pressure in San Tan Valley is 3.7 hPa, with a low of 956.5 hPa and a high of 960.2 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in San Tan Valley hour by hour and stay informed about how it will change over the next 6 hours.
The barometric pressure in San Tan Valley fluctuates throughout the day. It is affected by the movement of high and low-pressure systems. Weather fronts also influence the pressure.
The city is situated in the Sonoran Desert. The desert landscape is characterized by flat plains and scattered mountain ranges. The nearby Superstition Mountains have a gentle slope.
The mountains do not obstruct the flow of air into the valley. Air masses can move freely, causing pressure changes. This landscape feature contributes to the varying pressure.