WashingtonReservoir, 4,388 acres, Kittitas County
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2,213.55ft
Down 0.79 ft this week
Sailing
CheckingReading the forecast
Kayak and SUP
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Power boating
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Fishing
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Outlook. Monday: WNW wind 1 to 3 kt, gusts to 8 kt, high near 50°F, 58% chance of rain. Tuesday: W wind 3 to 6 kt, gusts to 13 kt, high near 47°F, 75% chance of rain.
7-day wind forecastLoads when you scroll here
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Last hour of NOAA MRMS radar, 1 km resolution. Map data © OpenStreetMap contributors, OpenMapTiles, OpenFreeMap.
2,213.55ft above sea level
-0.79 ft in 7 days13.65 ft below the October normal
Reading from Oct 25, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Kachess Lake was at 2,213.55 ft on October 25, falling 0.79 ft over the past week. That is below normal for October: the typical October level is 2,227.20 ft, so the lake is 13.65 ft below its usual mark.
Background reading: Kachess Lake on Wikipedia
Kachess Lake is a 4,388-acre reservoir in Kittitas County, Washington. The water surface sits about 2,257 ft above sea level.
Water level on this page comes from the U.S. Army Corps of Engineers reading at Lake Kachess KAC, published through the Corps' CWMS data service. Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
Mid-sized lakes like this one tend to have shifty, gusty wind near shore and steadier pressure in the middle, which is why gust spread matters as much as average speed. Reservoir levels move with releases and inflow, so ramps and beaches can change week to week. The water level page tracks that day by day.
The go or no-go calls above are a starting point, not a guarantee. Read how we score conditions, and always check local rules and posted warnings before you launch.
The National Weather Service forecast for the lake from October 26: Monday: WNW wind 1 to 3 kt, gusts to 8 kt, high near 50°F, 58% chance of rain. The panel at the top of this page refreshes the current wind, gusts and direction when you open it and turns them into a call for sailing, paddling, power boating and fishing.
Kachess Lake was at 2,213.55 ft on October 25, falling 0.79 ft over the past week. That is below normal for October: the typical October level is 2,227.20 ft, so the lake is 13.65 ft below its usual mark.
Kachess Lake covers about 4,388 acres (6.9 square miles) of surface water.
If Kachess is blown out, these are the closest alternatives. Tap through for their conditions.