Rimrock Lake

Name: Rimrock Lake (Washington) water level
Creator: U.S. Bureau of Reclamation

Washington · Reclamation gauge

Grey bar: 12-month range 2,849.7–2,925.1 ft.

Water level · NAVD88

2,849.94FT

Storage 54,542 acre-feet

The source publishes no % full figure.

7 days +0.08 ft30 days −28.48 ft

Reading for Oct 24, 2026 · page refreshed Oct 25, 21:16 UTC
Source: U.S. Bureau of Reclamation (RISE)

Worth going today?This Afternoon

Windy or wet – use caution

Light wind, 53% chance of rain

Wind6 mph

Rain53%

Temp46°F

Level2,849.9 ft

This AfternoonChance Rain Showers · 46°F
E 6 mph · rain 53%

TonightChance Rain Showers · 38°F
N 0 to 5 mph · rain 53%

NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Level history

30 days1 year

Field notes

On Oct 24, 2026, Rimrock Lake was at 2,849.94 (NAVD88) ft.

Reclamation reports storage of 54,542 acre-feet for the same day.

Over the past 7 days the lake has been rising (+0.08 ft), and it is −28.48 ft over 30 days.

Readings come from the Bureau of Reclamation's daily reservoir data for Rimrock Lake and Tieton Dam (RIM).

Lake facts

Storage (latest)	54,542 acre-feet
Gauge / station	Rimrock Lake and Tieton Dam (RIM)
Elevation datum	ft (NAVD88)
Gauge location	46.6566, -121.1289

Nearby lakes

Bumping Lake17 mi NW3,396.26 ft−1.94 ft Cle Elum Lake41 mi N2,121.84 ft−0.71 ft Kachess Lake42 mi N2,213.55 ft−0.91 ft Keechelus Lake47 mi N2,432.74 ft−0.58 ft Mud Mountain Lake51 mi NW915.76 ft−0.36 ft

Common questions

Is Rimrock Lake rising or falling?

Over the last 7 days it changed +0.08 ft and over 30 days −28.48 ft.

How full is Rimrock Lake?

Reclamation publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.

How often is this page updated?

The page is rebuilt automatically every day from Reclamation's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Bureau of Reclamation's RISE data portal (data.usbr.gov). Forecasts come from the National Weather Service.

Daily values published by the Bureau of Reclamation. Reclamation data are provisional and subject to revision unless otherwise noted. This page is not affiliated with or endorsed by the Bureau of Reclamation. See data sources.