MontanaReservoir, 32,810 acres
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3,784.71ft
Up 0.21 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: ESE wind 3 to 6 kt, gusts to 14 kt, high near 50°F. Tuesday: SW wind 6 to 11 kt, gusts to 22 kt, high near 48°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.
3,784.71ft above sea level
+0.21 ft in 7 days1.15 ft below the October normal
Reading from Oct 26, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Canyon Ferry Lake was at 3,784.71 ft on October 26, rising 0.21 ft over the past week. That is near normal for October: the typical October level is 3,785.86 ft, so the lake is 1.15 ft below its usual mark.
Background reading: Canyon Ferry Lake on Wikipedia
Canyon Ferry Lake covers about 32,810 acres in Montana and is classed as a reservoir. The reservoir dates to 1949.
Water level on this page comes from the U.S. Army Corps of Engineers reading at Canyon Ferry Dam & Reservoir, published through the Corps' CWMS data service. Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
On a lake this size the wind has miles of open water to work with, so a 15 kt breeze can stack up a steep chop in the main basin while sheltered coves stay flat. 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: ESE wind 3 to 6 kt, gusts to 14 kt, high near 50°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.
Canyon Ferry Lake was at 3,784.71 ft on October 26, rising 0.21 ft over the past week. That is near normal for October: the typical October level is 3,785.86 ft, so the lake is 1.15 ft below its usual mark.
Canyon Ferry Lake covers about 32,810 acres (51 square miles) of surface water.
The dam that forms Canyon Ferry Lake was completed in 1949.
If Canyon Ferry is blown out, these are the closest alternatives. Tap through for their conditions.