OregonReservoir, 61,776 acres, Klamath County
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4,140.65ft
Steady this week
Sailing
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Kayak and SUP
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Power boating
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Fishing
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Outlook. Monday: WNW wind 6 to 9 kt, gusts to 14 kt, high near 42°F. Tuesday: W wind 1 to 5 kt, gusts to 12 kt, high near 42°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.
4,140.65ft NAVD88
+0.03 ft in 7 daysRight at the October normal
Reading from Oct 25, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Upper Klamath Lake was at 4,140.65 ft on October 25, holding steady over the past week (+0.03 ft). That is near normal for October: the typical October level is 4,140.65 ft, so the lake is 0.00 ft above its usual mark.
Background reading: Upper Klamath Lake on Wikipedia
Set in Klamath County, Oregon, Upper Klamath Lake is a 61,776-acre reservoir. Its dam was completed in 1921, and the lake is operated by PacifiCorp. The surface sits about 4,140 ft above sea level and the deepest point is roughly 49 ft down.
We read the level from USGS gauge 11507001, listed as Upper Klamath Lake near K.falls(weight/mean Elev) OR. Wind and weather come from the National Weather Service grid cell over the lake, so the numbers describe open water rather than the nearest airport.
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: WNW wind 6 to 9 kt, gusts to 14 kt, high near 42°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.
Upper Klamath Lake was at 4,140.65 ft on October 25, holding steady over the past week (+0.03 ft). That is near normal for October: the typical October level is 4,140.65 ft, so the lake is 0.00 ft above its usual mark.
Upper Klamath Lake covers about 61,776 acres (97 square miles) of surface water.
The deepest point of Upper Klamath Lake is roughly 49 ft.
Upper Klamath Lake is operated by PacifiCorp. Boating rules, closures and ramp hours come from the operator and the state wildlife agency.
The dam that forms Upper Klamath Lake was completed in 1921.
If Upper Klamath is blown out, these are the closest alternatives. Tap through for their conditions.