WashingtonReservoir, 6,715 acres, Grant County
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1,046.65ft
Down 0.10 ft this week
Sailing
CheckingReading the forecast
Kayak and SUP
CheckingReading the forecast
Power boating
CheckingReading the forecast
Fishing
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Outlook. Monday: S wind 3 to 5 kt, gusts to 8 kt, high near 55°F. Tuesday: SW wind 2 to 9 kt, gusts to 17 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.
1,046.65ft NGVD29
-0.10 ft in 7 days0.07 ft below the October normal
Reading from Oct 26, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Moses Lake was at 1,046.65 ft on October 26, falling 0.10 ft over the past week. That is near normal for October: the typical October level is 1,046.72 ft, so the lake is 0.07 ft below its usual mark.
Background reading: Moses Lake on Wikipedia
Moses Lake covers about 6,715 acres in Grant County, Washington and is classed as a reservoir. The surface sits about 1,050 ft above sea level and the deepest point is roughly 18 ft down.
We read the level from USGS gauge 12471000, listed as Moses Lake at Moses Lake, WA. 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.
It is big enough for a proper sail but small enough that waves rarely get serious. Gusts off the shoreline are usually the bigger story than wave height. 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 3 to 5 kt, gusts to 8 kt, high near 55°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.
Moses Lake was at 1,046.65 ft on October 26, falling 0.10 ft over the past week. That is near normal for October: the typical October level is 1,046.72 ft, so the lake is 0.07 ft below its usual mark.
Moses Lake covers about 6,715 acres (10 square miles) of surface water.
The deepest point of Moses Lake is roughly 18 ft.
If Moses is blown out, these are the closest alternatives. Tap through for their conditions.