The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.

IEM Daily Feature

Good Start to April

Posted: 03 Apr 2026 05:32 AM, Views: 1276
Yesterday's Daily Feature presented a considerable amount of needed precipitation forecast to fall during the first part of April. The first two days of April have lived up to that forecast with much of the state already over an inch. The featured map presents NOAA MRMS precipitation estimates for the first two days of April. These totals will be added to today with multiple rounds of showers and thunderstorms expected.
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Previous Years' Features
Cedar Rapids Hwy 13 US 30 Bridge Deck, IA Webcam:
News Items  

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

Website Update
Posted: 13 Jun 12:45 PM

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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.

Precipitation

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Current Data

The IEM combines data from participating networks into products like maps shown above and web applications to analyze the data.

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