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

Week Early for 90

Posted: 25 May 2018 05:34 AM, Views: 336
Some of the warmest temperatures so far this year were experienced on Thursday with a few locations, like Ottumwa hitting 90 degrees for the first time. The featured chart looks at the climatology of year to date maximum temperature for the site. The average first 90 is about the first of June, so this was about a week ahead of schedule. The near term forecast looks hot, so it will be interesting to see if spring like temperatures will return or we have slipped right into summer. Of course, Memorial Day weekend is considered the start of summer as well!
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Previous Years' Features
Davenport (I-80/I-280), IA Webcam:
News Items  

New AWOS: Hampton (KHPT)
Posted: 04 May 10:00 AM

New Webcam: Marengo
Posted: 27 Apr 08:42 PM

December COOP Data Uploaded
Posted: 28 Mar 02:39 PM

November COOP Data Uploaded
Posted: 14 Feb 10:10 PM

GOES East Satellite Status
Posted: 07 Feb 01:36 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.


Besides point observations of precipitation, the IEM also processes gridded rainfall products made available by NOAA. This information is archived and made available in GIS ready formats.

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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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