Lake Levels DailyLake Levels Daily

Rimrock Lake Water Level Today

Daily level, distance to full pool and history for Rimrock Lake, on the Tieton River in Washington.

Updated · Source: Bureau of ReclamationReclamation

Water level

2,851.19ft

msl · Daily reading for Nov 7, 2026

  • 74.81 ftbelow full pool (2,926.0 ft)
  • +0.17 ftin 24 h+0.65 ft in 7 days−7.05 ft in 30 days
2,8202,8402,8602,8802,9002,9202,9402,9602,8202,8402,8602,8802,9002,9202,9402,9602,8202,8402,8602,8802,9002,9202,9402,960
  • Full pool
  • 1 yr ago

Is Rimrock Lake full?

No. Rimrock Lake is 74.81 ft below full pool (2,926.0 ft). It is 16.75 ft higher than a year ago (2,834.44 ft on Nov 7, 2025).

Rimrock Lake level history

View data table
DateLevel (ft)% full
Nov 7, 20262,851.19—
Nov 6, 20262,851.02—
Nov 5, 20262,850.91—
Nov 4, 20262,850.83—
Nov 3, 20262,850.75—
Nov 2, 20262,850.66—
Nov 1, 20262,850.60—
Oct 31, 20262,850.54—
Oct 30, 20262,850.46—
Oct 29, 20262,850.39—
Oct 28, 20262,850.29—
Oct 27, 20262,850.20—
Oct 26, 20262,850.10—
Oct 25, 20262,850.02—
Oct 24, 20262,849.94—
Oct 23, 20262,849.86—
Oct 22, 20262,849.85—
Oct 21, 20262,849.80—
Oct 20, 20262,849.74—
Oct 19, 20262,849.67—
Oct 16, 20262,849.86—
Oct 15, 20262,850.14—
Oct 14, 20262,850.48—
Oct 13, 20262,850.95—
Oct 12, 20262,852.08—
Oct 11, 20262,853.55—
Oct 10, 20262,855.05—
Oct 9, 20262,856.61—
Oct 8, 20262,858.24—
  • Rimrock Lake level
  • Full pool 2,926.0 ft
  • Above full pool
Source: Reclamation · Daily readings since 1970

Rimrock Lake on Nov 7 in past years

Rimrock Lake water level on Nov 7 in past years
YearLevel (ft)vs todayvs full pool
2026today2,851.19—−74.81 ft
20252,834.44−16.75−91.56 ft
20242,810.86−40.33−115.14 ft
20232,837.79−13.40−88.21 ft
20222,863.65+12.46−62.35 ft
20212,857.16+5.97−68.84 ft
20202,864.70+13.51−61.30 ft
20192,855.56+4.37−70.44 ft
20182,847.65−3.54−78.35 ft
20172,863.72+12.53−62.28 ft
20162,870.36+19.17−55.64 ft

Today’s level is the highest for this date since 2022.

Lake facts

Full pool (conservation pool)
2,926.0 ft msl
Highest since 1970
2,927.41 ftJun 17, 1974
Lowest since 1970
2,766.25 ftOct 20, 1979
Data since
Jan 1, 1970
Dam
Tieton Damcompleted 1925
River
Tieton River
Owned by
Bureau of Reclamation
Dam location
Yakima County
Gauge location
46.6566, −121.1289

Dam, river and owner from the National Inventory of Dams (USACE). Records cover Jan 1, 1970 to today (daily averages).

Weather on the lake

  1. This Afternoon44°FHighLow 35°FW 7 mphMostly Cloudy
  2. Tonight35°FLowN 0–7 mphMostly Cloudy
  3. Monday45°FHighLow 40°FS 1–7 mphRain Showers
  4. Tuesday48°FHighLow 41°FSW 5 mphRain Showers Likely
  5. Wednesday55°FHighLow 41°FSE 1–5 mphPartly Sunny
  6. Thursday54°FHighLow 41°FSW 3 mphPartly Sunny
  7. Friday49°FHighLow 39°FSW 3–13 mphRain Showers Likely

Forecast: National Weather Service for the dam area (46.66, −121.13). Wind speeds are forecasts, not measurements.

Nearby lakes

Quick answers

What is the full pool level of Rimrock Lake?
2,926.0 ft above mean sea level, the top of its conservation pool. Above it, water is released or flows over the spillway of Tieton Dam.
How much does Rimrock Lake need to be full?
Rimrock Lake needs 74.81 ft more water to reach full pool (2,926.0 ft), as of Nov 7, 2026.
Is Rimrock Lake rising or falling?
It is rising: +0.65 ft in the last 7 days and +0.17 ft in 24 hours, to 2,851.19 ft on Nov 7, 2026 (Bureau of Reclamation).
When was Rimrock Lake last full?
It was last at or above full pool (2,926.0 ft) on Jul 2, 2022. On Nov 7, 2026 it was 74.81 ft below.
What is the highest level in our data?
Rimrock Lake reached 2,927.41 ft on Jun 17, 1974. The lowest was 2,766.25 ft on Oct 20, 1979 (Reclamation data since 1970; older records are not in this data set).
How much has Rimrock Lake changed in the last year?
In the last 12 months it ranged from 2,835.42 ft (Nov 8, 2025) to 2,925.09 ft (May 13, 2026), a swing of 89.67 ft.
How often is this page updated?
This page is updated every day with the daily reading of the Bureau of Reclamation, which is usually published one or two days later. The last reading is from Nov 7, 2026.

Where this data comes from

Daily elevation from the Bureau of Reclamation (data.usbr.gov). Updated once a day. Weather from the National Weather Service. Dam details from the National Inventory of Dams.

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.