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Iowa barometric pressure today
Right now the highest pressure in Iowa is Sioux City, 30.11 inHg (1020 hPa) and the lowest is Davenport, 30.01 inHg (1016 hPa). Values are sea-level pressure from 6 airport weather stations.
| City | Station | inHg | 3 h |
|---|---|---|---|
| Des Moines, IA | KDSM | 30.08 | ↘ -1.4 |
| Cedar Rapids, IA | KCID | 30.04 | ↘ -0.3 |
| Davenport, IA | KMLI | 30.01 | ↘ -0.7 |
| Sioux City, IA | KSUX | 30.11 | ↘ -2.1 |
| Iowa City, IA | KIOW | 30.05 | ↘ -0.7 |
| Ames, IA | KAMW | 30.08 | ↘ -1.0 |
Elevation and pressure across Iowa
The cities here run from about 591 ft in Davenport to 1,201 ft in Sioux City. On a standard day that means about 29.29 inHg of actual air pressure in Davenport and 28.65 inHg in Sioux City. The readings above are corrected to sea level, so any difference between stations comes from the weather, not the height.
Highest point in Iowa · Sea-level vs station pressure · High vs low pressure
Frequently asked questions
What is the barometric pressure in Iowa today?
The live map and station board on this page show sea-level pressure at 6 weather stations across Iowa, including Des Moines and Cedar Rapids. Each reading is the latest airport report, checked about every 10 minutes.
Why does a barometer in Sioux City read lower than one in Davenport?
Elevation. Sioux City sits at about 1,201 ft and Davenport at about 591 ft, a gap worth roughly 0.64 inHg of actual air pressure on a standard day. Forecasts correct for that, so the sea-level values here can be compared directly.
Is the pressure rising or falling in Iowa?
The last column of the station board shows the change over the last three hours, in hPa, for each station. Falling numbers usually mean clouds and rain are on the way; rising numbers mean clearing.