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3,626.43ft
Up 0.11 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: S wind 2 to 6 kt, gusts to 11 kt, high near 58°F. Tuesday: SW wind 13 to 22 kt, gusts to 31 kt, high near 58°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.
3,626.43ft NGVD29
+0.11 ft in 7 days8.78 ft below the October normal
Reading from Oct 26, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Bighorn Lake was at 3,626.43 ft on October 26, rising 0.11 ft over the past week. That is well below normal for October: the typical October level is 3,635.21 ft, so the lake is 8.78 ft below its usual mark.
Bighorn Lake covers about 12,423 acres in Big Horn County, Montana and is classed as a reservoir. The water surface sits about 3,642 ft above sea level.
Water level on this page comes from the U.S. Army Corps of Engineers reading at Yellowtail 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: S wind 2 to 6 kt, gusts to 11 kt, high near 58°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.
Bighorn Lake was at 3,626.43 ft on October 26, rising 0.11 ft over the past week. That is well below normal for October: the typical October level is 3,635.21 ft, so the lake is 8.78 ft below its usual mark.
Bighorn Lake covers about 12,423 acres (19 square miles) of surface water.
If Bighorn is blown out, these are the closest alternatives. Tap through for their conditions.
