MinnesotaReservoir, 20,696 acres, Beltrami County, Cass County
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1,301.99ft
Steady 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: ENE wind 3 to 4 kt, gusts to 11 kt, high near 43°F. Tuesday: ESE wind 5 to 8 kt, gusts to 17 kt, high near 49°F, 82% chance of rain.
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.
1,301.99ft NGVD29
+0.02 ft in 7 days0.29 ft above the October normal
Reading from Oct 26, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Cass Lake was at 1,301.99 ft on October 26, holding steady over the past week (+0.02 ft). That is well above normal for October: the typical October level is 1,301.70 ft, so the lake is 0.29 ft above its usual mark.
Background reading: Cass Lake on Wikipedia
Cass Lake is a 20,696-acre reservoir in Beltrami County, Cass County, Minnesota.
Water level on this page comes from the U.S. Army Corps of Engineers reading at Bimijiwan Dam (Knutson Dam), published through the Corps' CWMS data service. Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
With this much open water, waves build quickly when the wind lines up with the long axis of the lake. Pick a launch on the upwind shore on breezy days and the ride home is easier. 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: ENE wind 3 to 4 kt, gusts to 11 kt, high near 43°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.
Cass Lake was at 1,301.99 ft on October 26, holding steady over the past week (+0.02 ft). That is well above normal for October: the typical October level is 1,301.70 ft, so the lake is 0.29 ft above its usual mark.
Cass Lake covers about 20,696 acres (32 square miles) of surface water.
If Cass is blown out, these are the closest alternatives. Tap through for their conditions.