Great Lakes Water Levels Forecast to Remain Above Last Year's Levels in 2026

The U.S. Army Corps of Engineers outlook indicates that Lakes Michigan and Huron will remain 6 to 10 inches above 2025 levels from May through October. The elevated water levels are a result of a massive March blizzard and subsequent heavy April rainstorms, which led to increased runoff into rivers and tributaries. While the lake system remains below its record April high by 37 inches, the higher water poses risks of flooding, as seen with the Boardman/Ottaway River overflowing its banks and washing out the Beitner Bridge near Traverse City in April 2026.

Lake Erie's levels are expected to stay 2 to 3 inches below last year's levels through June and 1 to 2 inches lower in July and August before slightly exceeding 2025 levels by early fall. Lake Superior is expected to remain near or slightly above long-term averages through the fall, following a 3-inch rise from March to April. Understanding these trends allows communities to prepare for potential flooding and adjust water management strategies.

The water levels are influenced by a combination of factors, including precipitation, snowmelt, and evaporation rates.

Stay informed about local weather forecasts and flood warnings. Ensure your property is protected with adequate drainage and consider flood insurance if you live near the shoreline.

The Great Lakes' water levels are dynamic and influenced by seasonal weather patterns. Key takeaways include:

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