The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.
Needed Drink
Posted: 15 May 2026 05:30 AM, Views: 674After a very wet April, May has been the exact opposite with very little rainfall to speak of. An unofficial IEM Iowa statewide estimate indicates the first 14 days of May being the driest on record since at least 1893. Thankfully, this situation is about to change and the subject of today's featured map. The map depicts Weather Prediction Center's seven day precipitation forecast along with the latest US Drought Monitor released on Thursday. The entire state is shown in the 1.5 to near three inch range.
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ISU Network Outage [resolved]
Posted: 12 May 11:06 PM
1 April IEM Outage [resolved]
Posted: 2 Apr 10:55 AM
Tracking TAF Amendments
Posted: 13 Feb 10:28 AM
IEM Archival Update
Posted: 24 Sep 11:07 PM
TAF Archive Fixes
Posted: 22 Aug 7:28 AM
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Soil Temperatures
Data from the Iowa State Soil Moisture Network is found on this website and daily soil temperature averages are used to produce the highlighted analysis.




