Barometric Pressure in Sioux City, United States 
1019 hPa
17.8 ℃
61%
1.08 m/s
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The average pressure in Sioux City, Iowa, United States today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at frequent intervals
Rapid Pressure Changes
Rapid pressure changes detected in Sioux City, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Rise : ()
The daily total fluctuation in pressure in Sioux City is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Sioux City hour by hour across the next 6 hourly readings.
Sioux City, Iowa, has big changes in air pressure, which affects the weather.
The city's flat land and location near the Missouri River make air pressure rise and fall quickly.
In winter, high pressure brings cold, dry air from Canada.
In summer, low pressure brings warm, humid air from the Gulf of Mexico.
Sioux City has a humid continental climate, with big pressure changes between seasons.