New HampshireReservoir, Merrimack County
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382.71ft
Down 0.55 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: WNW wind 1 to 5 kt, gusts to 10 kt, high near 67°F. Tuesday: NW wind 2 to 4 kt, gusts to 8 kt, high near 53°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.
382.71ft above sea level
-0.55 ft in 7 days0.65 ft above the October normal
Reading from Oct 26, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Hopkinton Lake was at 382.71 ft on October 26, falling 0.55 ft over the past week. That is above normal for October: the typical October level is 382.06 ft, so the lake is 0.65 ft above its usual mark.
Hopkinton Lake is a reservoir in Merrimack County, New Hampshire. It is managed by United States Army Corps of Engineers.
Water level on this page comes from the U.S. Army Corps of Engineers reading at Hopkinton Dam, published through the Corps' CWMS data service. Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
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: WNW wind 1 to 5 kt, gusts to 10 kt, high near 67°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.
Hopkinton Lake was at 382.71 ft on October 26, falling 0.55 ft over the past week. That is above normal for October: the typical October level is 382.06 ft, so the lake is 0.65 ft above its usual mark.
Hopkinton Lake is operated by United States Army Corps of Engineers. Boating rules, closures and ramp hours come from the operator and the state wildlife agency.
If Hopkinton is blown out, these are the closest alternatives. Tap through for their conditions.