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 2989.61 ftRECORD LOW2977.8 ft2025-02-22RECORD HIGH2993.72 ft2026-07-05

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

2026-07-152989.2–2993.4 ft2026-08-14

Last 12 months

2025-08-142977.9–2995.4 ft2026-08-14

Full history (5.4 years)

2021-04-062975.9–2995.5 ft2026-08-13

Lake Elwell and Tiber records and averages

Current level2989.61 ft
Record high2993.72 ft (2026-07-05)
Record low2977.8 ft (2025-02-22)
Average of all readings2984.2 ft
Data span5.4 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

Lake Frances Reservoir water level
3811.04 ft · steady
Fresno Reservoir water level
2558.35 ft · falling
Pishkun Reservoir and Dikes water level
4369.4 ft · rising
Canyon Ferry Lake water level
3788.92 ft · falling
Gibson Reservoir water level
4664.82 ft · falling
Helena Valley Reservoir water level
3817.6 ft · falling

Source: the U.S. Bureau of Reclamation. Readings are provisional and subject to revision by the publishing agency. All Montana lake levels.