Montana lake levels today: Montana lakes

7 of 7 Montana lakes are below full pool today. Bighorn Lake is the lowest for the date, Lake Elwell (Tiber) the highest.

See every lake

Data as of November 4, 2026. Pictured: Bighorn Lake.

Montana at a glance

Pictured: Flathead Lake, which is 1.8 ft below full today.

8 Montana lakes trackedFederal reservoirs and lakes with a live agency gauge.
7 Below full poolOut of 7 with a published full pool; 0 are at or above it.
1 Lower than usual for the dateOut of 8 with five or more years of history; 1 are higher than usual.
5 Lower than a year agoOut of 8 lakes with a reading from the same date last year.

Every Montana lake, lowest first

Measured against full pool, Bighorn Lake is the emptiest Montana lake today (13.5 ft below full) and Lake Elwell (Tiber) the fullest (6.4 ft below full).

Compared with a year ago, Bighorn Lake has dropped the most (6.8 ft lower) and Lake Elwell (Tiber) has gained the most (6.9 ft higher).

1 of 8 lakes are lower than usual for early November, measured against each lake's own past years on today's date.

Select a column heading to sort the table. Each lake links to its own page with a 12-month chart and the dock check.

Montana lake levels. Select a column heading to sort.

Bighorn Lake	3,626.47	−13.5 ft	20th pct	−7.35	−6.76
Clark Canyon Reservoir	5,519.19	−26.9 ft	27th pct	−4.70	−0.02
Hungry Horse Reservoir	3,538.90	Natural lake	27th pct	−4.26	−1.89
Fort Peck Lake	2,221.42	−12.6 ft	33rd pct	−7.47	−0.79
Canyon Ferry Lake	3,785.26	−11.7 ft	43rd pct	−1.01	+2.40
Lake Koocanusa	2,442.47	−16.5 ft	60th pct	+1.26	−1.00
Flathead Lake	2,891.22	81.7%	70th pct	+0.13	+0.48
Lake Elwell (Tiber)	2,986.58	−6.4 ft	87th pct	+1.69	+6.86

Montana lake questions

Which Montana lake is the fullest right now?

Lake Elwell (Tiber): 6.4 ft below full.

Which Montana lake is the lowest?

Measured against full pool, Bighorn Lake (13.5 ft below full). Measured against its own normal for the date, Bighorn Lake (lower than usual).

How is this ranking made?

Lakes that publish storage are ranked by percent of conservation storage. The rest are placed by their distance from full pool. Natural lakes without a full pool sit at the end, compared only with their normal for the date.