Lake Elwell and Tiber Water Level
Montana · updated daily from the U.S. Bureau of Reclamation
2989.61 ft
Lake Elwell and Tiber is above average for this time of year and falling (-0.60 ft in the last 7 days).
Change since yesterday: -0.02 ft
Reading as of 2026-08-14 · higher than 74% of August readings on record
Where Lake Elwell and Tiber sits historically
Today's level compared with every reading in our 5.4-year record for this lake.
Since yesterday
-0.02 ft
7-day change
-0.60 ft
30-day change
-3.38 ft
1-year change
+6.54 ft
Last 30 days
Last 12 months
Full history (5.4 years)
Lake Elwell and Tiber records and averages
| Current level | 2989.61 ft |
|---|---|
| Record high | 2993.72 ft (2026-07-05) |
| Record low | 2977.8 ft (2025-02-22) |
| Average of all readings | 2984.2 ft |
| Data span | 5.4 years (2,000 readings) |
Frequently asked questions
Is Lake Elwell and Tiber full right now?
As of 2026-08-14, Lake Elwell and Tiber sits at 2989.61 ft, which is above average for this time of year.Over the past 30 days the level has fallen 3.38 ft.
What is the water level at Lake Elwell and Tiber today?
The most recent reading is 2989.61 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 Lake Elwell and Tiber has ever been?
The highest level in our records is 2993.72 ft on 2026-07-05. The lowest is 2977.8 ft on 2025-02-22. Our record covers about 5.4 years of readings.
Is Lake Elwell and Tiber low for this time of year?
Compared with every August in our records, the current level is higher than 74% 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 Lake Elwell and Tiber 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. Lake Elwell and Tiber has fallen 3.38 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 Lake Elwell and Tiber changed over the past year?
The level is +6.54 ft compared with this date last year (2989.61 ft today). The full-history chart above covers 5.4 years, with a record high of 2993.72 ft and a record low of 2977.8 ft.
Nearby lakes in Montana
Source: the U.S. Bureau of Reclamation. Readings are provisional and subject to revision by the publishing agency. All Montana lake levels.