Canyon Ferry Lake Water Level

Montana · updated daily from the U.S. Bureau of Reclamation

3788.92 ft

Canyon Ferry Lake is below average for this time of year and falling (-0.72 ft in the last 7 days).

Change since yesterday: -0.04 ft

Reading as of 2026-08-14 · higher than 38% of August readings on record

Where Canyon Ferry Lake sits historically

TODAY 3788.92 ftRECORD LOW3776.77 ft2022-02-27RECORD HIGH3797.21 ft2023-07-01

Today's level compared with every reading in our 5.4-year record for this lake.

Since yesterday

-0.04 ft

7-day change

-0.72 ft

30-day change

-2.29 ft

1-year change

+1.21 ft

Last 30 days

2026-07-153788.6–3791.5 ft2026-08-14

Last 12 months

2025-08-143781.1–3792.4 ft2026-08-14

Full history (5.4 years)

2021-03-113774.3–3799.6 ft2026-08-13

Canyon Ferry Lake records and averages

Current level3788.92 ft
Record high3797.21 ft (2023-07-01)
Record low3776.77 ft (2022-02-27)
Average of all readings3785.98 ft
Data span5.4 years (2,000 readings)

Frequently asked questions

Is Canyon Ferry Lake full right now?

As of 2026-08-14, Canyon Ferry Lake sits at 3788.92 ft, which is below average for this time of year.Over the past 30 days the level has fallen 2.29 ft.

What is the water level at Canyon Ferry Lake today?

The most recent reading is 3788.92 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 Canyon Ferry Lake has ever been?

The highest level in our records is 3797.21 ft on 2023-07-01. The lowest is 3776.77 ft on 2022-02-27. Our record covers about 5.4 years of readings.

Is Canyon Ferry Lake low for this time of year?

Compared with every August in our records, the current level is higher than 38% of them — below 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 Canyon Ferry Lake 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. Canyon Ferry Lake has fallen 2.29 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 Canyon Ferry Lake changed over the past year?

The level is +1.21 ft compared with this date last year (3788.92 ft today). The full-history chart above covers 5.4 years, with a record high of 3797.21 ft and a record low of 3776.77 ft.

Nearby lakes in Montana

Helena Valley Reservoir water level
3817.6 ft · falling
Pishkun Reservoir and Dikes water level
4369.4 ft · rising
Gibson Reservoir water level
4664.82 ft · falling
Lake Frances Reservoir water level
3811.04 ft · steady
Lake Elwell and Tiber water level
2989.61 ft · falling
Hebgen Lake water level
6531.56 ft · falling

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