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August 2026 Upper Mississippi River Valley Weather Summary

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- National Water Prediction Service (NWPS)
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Persistent Storm Potential Through The Weekend

Periodic showers and storms continue through the weekend into early next week. Initial storm chances this morning, and evening into the overnight could (10-20% chance) become strong to severe with damaging wind as the main threat. Large hail and damaging winds also remain possible through the morning hours.