Lake Merwin level history
In the 366 days we have on record (Nov 4, 2025 to Nov 4, 2026), the highest level was 238.92 ft on Apr 27, 2026 and the lowest was 221.00 ft on Nov 3, 2026.
Lake Merwin Water Level Today
Current elevation 221.00 ft
No change in 24 h▼ 6.60 ft in 7 days
As of Nov 4, 2026, 1:00 AM PST, Lake Merwin is at 221.00 ft. The level has fallen 6.60 ft over the last 7 days.
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Lake Merwin level history
Level
| Date | Elevation | Daily change | Storage |
|---|---|---|---|
| Nov 4, 2026 | 221.00 ft | 0.00 ft | — |
| Nov 3, 2026 | 221.00 ft | −2.04 ft | — |
| Nov 2, 2026 | 223.04 ft | −1.79 ft | — |
| Nov 1, 2026 | 224.83 ft | −1.17 ft | — |
| Oct 31, 2026 | 226.00 ft | −0.81 ft | — |
| Oct 30, 2026 | 226.81 ft | −0.36 ft | — |
| Oct 29, 2026 | 227.17 ft | −0.43 ft | — |
| Oct 28, 2026 | 227.60 ft | −0.40 ft | — |
| Oct 27, 2026 | 228.00 ft | −0.90 ft | — |
| Oct 26, 2026 | 228.90 ft | −0.79 ft | — |
| Oct 25, 2026 | 229.69 ft | +0.13 ft | — |
| Oct 24, 2026 | 229.56 ft | +0.73 ft | — |
| Oct 23, 2026 | 228.83 ft | +0.08 ft | — |
| Oct 22, 2026 | 228.75 ft | −0.23 ft | — |
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Lakes near Lake Merwin
Yale Reservoir 5.5 mi · 473.00 ft Swift 3.2 Mi East of Lake 14 mi · 951.00 ft Castle Lake 20 mi · 2,577.93 ft Spirit Lake West 23 mi · 3,441.20 ft Spirit Lake 24 mi · 3,403.24 ft Bull Run Reservoir No 1 37 mi · 981.73 ft
All Washington lake levels FAQ
What is the Lake Merwin water level today?
221.00 ft as of Nov 4, 2026, 1:00 AM PST, reported by the U.S. Geological Survey.
How often is this page updated?
Every 3 hours. The gauge reports several times a day.
What is the highest and lowest level of Lake Merwin?
In the period we have (since Nov 4, 2025): 238.92 ft and 221.00 ft.
Data: U.S. Geological Survey, gauge 14219950 (official page). Provisional data, subject to revision. For information only. Not for navigation or flood safety decisions. Check the official source. LakeLevelHQ is not affiliated with any government agency.