Washington Lake Levels Today

Water levels and distance to full pool for 6 Washington lakes and reservoirs, updated every day from official gauges.

Updated Nov 8, 2026 · Source: USACE, USGS, Reclamation

  • 6lakes tracked
  • 0at or above full pool
  • 1rising this week
  • 4falling this week

All Washington lakes

Washington lakes and reservoirs. Column headers sort the table.
Lake Roosevelt1,287.501,290.0−2.50−1.101,286.38 ftNov 8, 4:00 PM PST
Lake Tapps538.38543.0−4.62−1.12540.47 ftNov 8, 3:30 PM PST
Lake Chelan1,092.311,100.0−7.69−0.951,093.04 ftNov 8, 4:15 PM PST
Keechelus Lake2,432.462,517.0−84.54−0.012,442.50 ftNov 7
Rimrock Lake2,851.192,926.0−74.81+0.652,834.44 ftNov 7
Lake Merwin218.00239.6−21.60−7.00230.96 ftNov 8, 4:00 PM PST
6 lakes · “1 yr ago” is % full when the source gives it, otherwise the level

Washington lakes on the map

MontanaOregonIdaho
Lake Roosevelt2.50 ft below full poolView lake
Lake Tapps4.62 ft below full poolView lake
Lake Chelan7.69 ft below full poolView lake
Keechelus Lake84.54 ft below full poolView lake
Rimrock Lake74.81 ft below full poolView lake
Lake Merwin21.60 ft below full poolView lake
  • < 25%
  • 25–50%
  • 50–75%
  • 75–90%
  • 90–100%
  • Above full pool
  • Percent full not published
  • No lakes tracked

Neighboring states

Quick answers

What does “percent full” mean for a reservoir?
It is the water stored in the conservation pool divided by the capacity of that pool. Water above full pool is flood storage and does not count, so a lake can be “100% full” and still rising. See Full pool and ft msl.
Where does this data come from?
From US Army Corps of Engineers, US Geological Survey, Bureau of Reclamation. Each lake page names its gauge and the time of the reading. See Sources.

Where this data comes from

Official gauges: US Army Corps of Engineers, US Geological Survey, Bureau of Reclamation. Sources

Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.