Barometric Pressure
Barometric Pressure in Waterloo, United States 
1021.6 hPa
11.7 ℃
61%
2.52 m/s
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The average pressure in Waterloo, Illinois, United States today is , which is considered normal. Pressure is trending steady.
Weather prediction: Changeable, mending
Rapid Pressure Changes
Rapid pressure changes detected in Waterloo, 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 Waterloo is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Waterloo hour by hour across the next 6 hourly readings.
Waterloo, Illinois has changing air pressure due to its location in the Midwest. The city's flat plains allow winds to move freely, causing pressure changes. In summer, high pressure brings warm, sunny days. In winter, low pressure brings cold, snowy weather. Waterloo has a humid continental climate, with big temperature differences between seasons, affecting air pressure.