Barometric Pressure in Kentucky, United States 
1018.8 hPa
19.5 ℃
90%
2.55 m/s
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The average pressure in Kentucky, Arkansas, United States today is , which is considered normal. Pressure is trending steady.
Weather prediction: Changeable, mending
Rapid Pressure Changes
Rapid pressure changes detected in Kentucky, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Rise : ()
The daily total fluctuation in pressure in Kentucky is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Kentucky hour by hour across the next 6 hourly readings.
The atmospheric pressure in Kentucky and Arkansas varies throughout the year. It changes depending on the weather fronts that move into the region. Low-pressure systems bring rain and storms, while high-pressure systems bring fair weather.
Kentucky and Arkansas are situated in a valley surrounded by the Appalachian Mountains to the east and the Ozark Mountains to the south. This unique landscape has an impact on the atmospheric pressure. The mountains force air to rise, cool, and condense, resulting in precipitation. The valley traps cold air in the winter, making it colder than surrounding areas.
The surrounding mountains also block cold air from Canada, keeping the region milder in the winter. In the summer, the valley becomes hot and humid as warm air from the Gulf of Mexico moves into the region. The combination of the valley and the surrounding mountains creates a unique weather pattern in Kentucky and Arkansas.