Kachess Lake Water Level
Washington · updated daily from the U.S. Bureau of Reclamation
2243.21 ft
Kachess Lake is above average for this time of year and falling (-2.31 ft in the last 7 days).
Change since yesterday: -0.40 ft
Reading as of 2026-08-14 · higher than 73% of August readings on record
Where Kachess Lake sits historically
Today's level compared with every reading in our 4.5-year record for this lake.
Since yesterday
-0.40 ft
7-day change
-2.31 ft
30-day change
-8.27 ft
1-year change
+18.30 ft
Last 30 days
Last 12 months
Full history (4.5 years)
Kachess Lake records and averages
| Current level | 2243.21 ft |
|---|---|
| Record high | 2261.88 ft (2022-06-20) |
| Record low | 2200.13 ft (2023-11-01) |
| Average of all readings | 2231.29 ft |
| Data span | 4.5 years (1,999 readings) |
Frequently asked questions
Is Kachess Lake full right now?
As of 2026-08-14, Kachess Lake sits at 2243.21 ft, which is above average for this time of year.Over the past 30 days the level has fallen 8.27 ft.
What is the water level at Kachess Lake today?
The most recent reading is 2243.21 ft (2026-08-14), sourced from the U.S. Bureau of Reclamation. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Kachess Lake has ever been?
The highest level in our records is 2261.88 ft on 2022-06-20. The lowest is 2200.13 ft on 2023-11-01. Our record covers about 4.5 years of readings.
Is Kachess Lake low for this time of year?
Compared with every August in our records, the current level is higher than 73% of them — above average for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.
Why is Kachess Lake low right now?
Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Kachess Lake has fallen 8.27 ft over the past 30 days. For the operational reason on any given week, check the U.S. Bureau of Reclamation directly.
How much has Kachess Lake changed over the past year?
The level is +18.30 ft compared with this date last year (2243.21 ft today). The full-history chart above covers 4.5 years, with a record high of 2261.88 ft and a record low of 2200.13 ft.
Nearby lakes in Washington
Source: the U.S. Bureau of Reclamation. Readings are provisional and subject to revision by the publishing agency. All Washington lake levels.