The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.
Top Two Day Rainfall
Posted: 07 Jul 2026 05:30 AM, Views: 336For the Ames NWS COOP site at the ISU Ag Farm southwest of town, the two day precipitation total from the deluge last week came in third largest on record for the site. The site reported a 24 hour total of 2.17" for the afternoon report on Friday and then 4.20" on Saturday. The heavy rainfall events took a break on Monday for Iowa with Tuesday expected to be mostly dry as well. Storms will return Wednesday and likely produce locally heavy rainfall totals again with ample moisture around and slow storm motions.
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Previous Years' Features
20253 PM July Temps
2012Hot Three Days
2011Right Turners
2010Lots of water
2009The sun returns
2005Isolated Thunder
2004Remains cool
Grinnell Mini, IA Webcam:
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Posted: 12 May 11:06 PM
1 April IEM Outage [resolved]
Posted: 2 Apr 10:55 AM
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Posted: 13 Feb 10:28 AM
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TAF Archive Fixes
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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.




