Barometric Pressure in McAlester, United States 
1022.6 hPa
15.2 ℃
51%
2.55 m/s
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The average pressure in McAlester, Oklahoma, United States today is , which is considered normal. Pressure is trending steady.
Weather prediction: Changeable, mending
The daily total fluctuation in pressure in McAlester is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in McAlester hour by hour across the next 6 hourly readings.
McAlester, Oklahoma has a humid subtropical climate with changing air pressure throughout the year.
Its location in southeastern Oklahoma means it's near the intersection of warm, moist Gulf air and cool, dry Canadian air.
This clash of air masses creates different air pressure patterns. When warm air rises, air pressure decreases, and when cool air sinks, air pressure increases.
In summer, warm, humid air dominates, causing low air pressure and frequent thunderstorms. In winter, cool, dry air dominates, causing high air pressure and clearer skies.