Barometric Pressure in Belleville, United States 
1019.9 hPa
6.6 ℃
47%
6.07 m/s
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The average pressure in Belleville, Illinois, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fairly fine, possible showers early
Rapid Pressure Changes
Rapid pressure changes detected in Belleville, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Rise : ()
- Rapid Rise : ()
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.