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July 2026 Upper Mississippi River Valley Weather Summary
Decorah, Oelwein, and Viroqua Automated Weather Observations Offline

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- National Water Prediction Service (NWPS)
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Periods of Showers and Storms Tonight

Showers and scattered storms progress from west to east this evening into Wednesday, mainly over northeast Iowa and southwest Wisconsin. Higher rainfall amounts in these areas near 1" are possible (20%-50%). Warming temperatures expected to build into the area through the weekend.