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730.45ft
Down 0.35 ft this week
Sailing
CheckingReading the forecast
Kayak and SUP
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Power boating
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Fishing
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Outlook. Monday: W wind 0 to 3 kt, gusts to 6 kt, high near 73°F. Tuesday: ESE wind 0 to 2 kt, gusts to 5 kt, high near 73°F.
7-day wind forecastLoads when you scroll here
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Last hour of NOAA MRMS radar, 1 km resolution. Map data © OpenStreetMap contributors, OpenMapTiles, OpenFreeMap.
730.45ft NGVD29
-0.35 ft in 7 days0.55 ft below the October normal
Reading from Oct 25, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
William H. Harsha Lake was at 730.45 ft on October 25, falling 0.35 ft over the past week. That is below normal for October: the typical October level is 731.00 ft, so the lake is 0.55 ft below its usual mark.
Set in Clermont County, Ohio, William H. Harsha Lake is a 1,975-acre reservoir.
Water level on this page comes from the U.S. Army Corps of Engineers reading at William H Harsha Lake, published through the Corps' CWMS data service. Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
It is big enough for a proper sail but small enough that waves rarely get serious. Gusts off the shoreline are usually the bigger story than wave height. Reservoir levels move with releases and inflow, so ramps and beaches can change week to week. The water level page tracks that day by day.
The go or no-go calls above are a starting point, not a guarantee. Read how we score conditions, and always check local rules and posted warnings before you launch.
The National Weather Service forecast for the lake from October 26: Monday: W wind 0 to 3 kt, gusts to 6 kt, high near 73°F. The panel at the top of this page refreshes the current wind, gusts and direction when you open it and turns them into a call for sailing, paddling, power boating and fishing.
William H. Harsha Lake was at 730.45 ft on October 25, falling 0.35 ft over the past week. That is below normal for October: the typical October level is 731.00 ft, so the lake is 0.55 ft below its usual mark.
William H. Harsha Lake covers about 1,975 acres (3.1 square miles) of surface water.
If William H. Harsha is blown out, these are the closest alternatives. Tap through for their conditions.
