Lake Merwin Water Level
Lake Merwin in WA is currently at 229 ft. See the 7-day trend, the lake map and ramps, and today's fishing conditions.
Lake Merwin lake facts
- Current level: 229 ft
- Trend: steady
- Location: WA, USA
- Water type: reservoir
- Source: USGS
- Reading taken: 2026-10-19T03:00:00.000Z
About the Lake Merwin water level
Lake Merwin in WA is currently at 229 ft. See the 7-day trend, the lake map and ramps, and today's fishing conditions.
Levels are provided for general reference. Always confirm conditions with the lake's managing authority before launching or running a tournament.