Barometric Pressure in Decatur, United States 
0000 hPa
00.0 ℃
00.0%
00.0 m/s
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The pressure in Decatur, Illinois, United States is predicted falling over the next 24 hours, with an average pressure of today, which is lower than normal.
Weather prediction: Very unsettled, rain
The daily total fluctuation in pressure in Decatur is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Decatur hour by hour and stay informed about how it will change over the next 6 hours.
Upcoming Days
Stay informed about the barometric pressure trends in Decatur for the upcoming days, including daily minimum and maximum readings.
Decatur's air pressure changes with weather patterns. High pressure brings clear skies and low pressure brings rain and storms.
Decatur's geography, being in a valley, affects air pressure. Cold air gets trapped, making pressure lower in winter.
In summer, high pressure dominates, bringing warm and sunny days. Autumn and spring have changing pressure, leading to unpredictable weather.
Decatur has a humid continental climate. This means it experiences big pressure changes between seasons. Summers are warm and humid, while winters are cold.