Willow Creek Reservoir (Montana), MT

As of 2026-10-12, Willow Creek Reservoir (Montana) sits at 4128.43 ft, which is high for this time of year. Over the past 30 days the level has risen 4.52 ft.

The most recent reading at Willow Creek Reservoir (Montana) is 4128.43 ft (2026-10-12), sourced from the U.S. Bureau of Reclamation. Readings on this page refresh automatically as the agency publishes new data.

The highest level for Willow Creek Reservoir (Montana) in our records is 4140.91 ft on 2022-05-29. The lowest is 4112.60 ft on 2025-11-21. Our record covers about 4 years of readings.

Compared with every October in our records, the current level is higher than 99% of them, which we classify as high 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.

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. Willow Creek Reservoir (Montana) has risen 4.52 ft over the past 30 days. For the operational reason on any given week, check the U.S. Bureau of Reclamation directly.

Willow Creek Reservoir (Montana) is +15.56 ft compared with this date last year (4128.43 ft today). The full-history chart above covers 4 years, with a record high of 4140.91 ft and a record low of 4112.60 ft.