Lake Levels USA tracks 18 lakes and reservoirs in Montana using U.S. Bureau of Reclamation (RISE), U.S. Geological Survey (Water Data for the Nation). Of the 18 with a current 7-day trend, 7 rose and 8 fell by more than 0.05 ft. Latest data: Oct 25, 2026. Elevations from different gauges use different datums, so compare each lake with its own history, not with other lakes.
All Montana lakes
Bighorn Lake YellowtailReclamation3,626.48 ft+0.26 ftBighorn RiverReclamation3,188.57 ft+0.33 ftCanyon Ferry Lake Dam PowerplantReclamation3,784.74 ft+0.21 ftClark Canyon ReservoirReclamation5,517.85 ft+0.97 ftEnders ReservoirReclamation3,080.06 ft−0.03 ftFlathead Lakeat Polson, MT2,891.62 ft−0.32 ftFresno ReservoirReclamation2,566.93 ft+0.03 ftGibson ReservoirReclamation4,611.30 ft−1.47 ftHebgen Lakenear West Yellowstone, MT6,529.84 ft−0.07 ftHelena Valley ReservoirReclamation3,817.59 ft−0.13 ftHungry Horse ReservoirReclamation3,540.53 ft−1.23 ftLake ComoReclamation4,204.95 ft−0.80 ftLake ElwellReclamation2,987.05 ft−0.26 ftLake SherburneReclamation4,745.45 ft+0.70 ftLima Reservoir Upstream of Clark Canyon ReservoirReclamation6,567.52 ft+0.25 ftNelson ReservoirReclamation2,215.89 ft−0.16 ftPishkun ReservoirReclamation4,349.24 ft±0.00 ftWillow Creek ReservoirReclamation4,130.25 ft+1.12 ft
Other states
AKME3WI12VT5NHWA34ID20MT18ND13MNILMI11NY26MA6OR52NV8WY19SD8IAIN11OH21PA28NJ8CTRICA41UT31CO37NE12MO6KY11WV4VA4MD5DE2AZ4NM15KS18ARTNNC17SC15DCOK6LA8MSAL1GA10HITX128FL8PR
Number = lakes with a gauge on this site. Grey = none yet.