Barometric Pressure in Belleville, United States 
1028 hPa
15.1 ℃
64%
2.28 m/s
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The average pressure in Belleville, Illinois, United States today is , which is higher than normal. Pressure is trending falling.
Weather prediction: Rain at times, worse later
The daily total fluctuation in pressure in Belleville is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Belleville hour by hour across the next 6 hourly readings.
The weather in Belleville, Illinois changes often, causing barometric pressure to rise and fall. This change happens when high and low-pressure systems move into the area.
Belleville's 500-foot elevation and flat landscape allow high-pressure systems to move in quickly. This leads to big changes in atmospheric pressure over short periods.
In winter, high pressure often brings cold air, causing pressure to rise. In summer, low pressure brings warm air, causing pressure to fall. Spring and fall bring mixtures of high and low pressure.
Belleville has a humid continental climate, which means big pressure changes bring big weather changes, like storms in spring and cold fronts in winter.