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WashingtonNatural lake, 21,745 acres, King County

Lake Washington water level

Lake Washington, Washington
Photo: Maltesen at da.wikipedia, Public domain

Current level

21.03ft above sea level

Reading from Oct 26, 2026

Well above normal for October

Past 24 hours
0.00ft
Past 7 days
+0.08ft
Past 30 days
+0.30ft
vs typical October
+0.35ft

Lake Washington was at 21.03 ft on October 26, holding steady over the past week (+0.08 ft). That is well above normal for October: the typical October level is 20.68 ft, so the lake is 0.35 ft above its usual mark.

Last 30 days

20.520.821.021.3typicalSep 26Oct 11Oct 26

Shaded band shows the lowest and highest October monthly averages on record. Dashed line is the typical October level.

Typical level through the year

Each bar spans the range of monthly averages on record for that month. The line marks the median. The orange dot is where the lake sits now.

21.022.0JFMAMJJASOND

Recent daily readings

Lake Washington daily mean water level, newest first
DateLevel (ft above sea level)Change
Oct 26, 202621.05+0.02
Oct 25, 202621.030.00
Oct 24, 202621.03+0.01
Oct 23, 202621.02+0.02
Oct 22, 202621.00+0.02
Oct 21, 202620.980.00
Oct 20, 202620.98+0.03
Oct 19, 202620.95+0.01
Oct 18, 202620.94+0.01
Oct 17, 202620.93+0.04
Oct 16, 202620.890.00
Oct 15, 202620.890.00
Oct 14, 202620.89+0.01
Oct 13, 202620.88+0.02

Reading these numbers

Readings are reservoir surface elevations in feet, as published by the U.S. Army Corps of Engineers. Compare them with ramp and dock elevations from the lake operator to judge whether a launch is usable.

Natural lake levels usually move slowly, following rain, snowmelt and evaporation. A rise after a wet week can flood low docks and beaches, while late-summer lows expose rocks and weed beds near shore.

The gauge is about 9 miles from the center of the lake and is listed by USACE as Kenmore Lake Washington. Wind can pile water up at one end of a big lake for a few hours, so short spikes on a windy day are normal.

Lake Washington water level questions

What is the water level at Lake Washington today?

Lake Washington was at 21.03 ft on October 26, holding steady over the past week (+0.08 ft). That is well above normal for October: the typical October level is 20.68 ft, so the lake is 0.35 ft above its usual mark.

Is Lake Washington high or low right now?

Compared with the long-term record for October, the lake is well above normal. The October monthly average has ranged from 20.57 to 21.01 ft, with a typical value of 20.68 ft.

Is Lake Washington rising or falling?

Over the last seven days the level has held roughly steady (+0.08 ft), and it is +0.30 ft compared with 30 days ago.

Where does the Lake Washington water level data come from?

From the U.S. Army Corps of Engineers reading at Kenmore Lake Washington. The Corps reports pool elevation, usually every hour, and early values can be revised after review.

How often is this page updated?

The page itself is rebuilt every day with the latest daily values, and the current reading refreshes straight from the Corps of Engineers each time you open it.

Nearby lakes

If Washington is blown out, these are the closest alternatives. Tap through for their water levels.