MONTANA RESERVOIR REPORT

Last Updated: February 11, 2026

Montana's dams and reservoirs play a critical role in water storage and supply, with implications for agriculture, recreation, and environmental health. A recent observation at Flathead Lake at Polson MT indicates that water levels are slightly above the average, with the elevation of the reservoir water surface at 2890 feet, compared to the historical average of 2889.53 feet. This minor increase, observed last on February 11, 2026, suggests the reservoir is currently maintaining water levels close to expected seasonal norms. However, broader regional data suggest that Montana may be facing challenges with water resources management due to changing climate conditions.

Cross-referencing multiple sources reveals that Montana's dams and reservoirs are experiencing varying conditions due to abnormal snowpack levels and river flows. For instance, reports from Montana Outdoor highlight that fishing conditions at First Lake near Havre, MT, are directly affected by water levels, which are influenced by runoff from snowpack. The Montana Free Press indicates that Yellowstone has adjusted fishing seasons due to warming summers, suggesting altered water temperatures and flows. Furthermore, Missoula Current and Colorado Public Radio report record low snow depths across Montana, pointing towards a broader regional issue of snow drought. This lack of snow has serious implications, as it can lead to water shortages for reservoirs and increase the risk of wildfires due to drier conditions. Specifically, the fishing outlook at Fort Peck, as reported by Montana Outdoor, is based on water levels that are likely impacted by the decreased snowpack.

In conclusion, while Flathead Lake's current water level is near average, the overall situation in Montana is marked by concerns over reduced snowpack and its effects on water availability. These abnormal conditions could lead to lower reservoir levels, affecting not only recreational activities, such as fishing, but also water supply for various uses. The state is advised to monitor these developments closely and consider long-term strategies for water conservation and management to mitigate potential impacts on the environment and human activity.

Montana has many reservoirs and dams that provide water for irrigation, hydropower, and recreation. Some notable reservoirs include Fort Peck Lake on the Missouri River, Hungry Horse Reservoir on the Flathead River, and Lake Koocanusa on the Kootenai River. These reservoirs receive water from various streams, rivers, and creeks in the surrounding areas, with snowpack and mountain melt contributing significantly to the water supply. The general hydrology of Montana is influenced by its mountainous terrain, with the western part of the state having a wetter climate and the eastern part being more arid. Record levels have been observed in recent years due to heavy snowfall and precipitation, but the state has also experienced drought conditions in some areas. Seasonal trends show that spring and early summer are the wettest times of the year, while late summer and fall are typically drier. Overall, reservoirs and dams play an important role in managing Montana's water resources and supporting various industries and recreational activities.

Montana has many reservoirs and dams that provide water for irrigation, hydropower, and recreation. Some notable reservoirs include Fort Peck Lake on the Missouri River, Hungry Horse Reservoir on the Flathead River, and Lake Koocanusa on the Kootenai River. These reservoirs receive water from various streams, rivers, and creeks in the surrounding areas, with snowpack and mountain melt contributing significantly to the water supply. The general hydrology of Montana is influenced by its mountainous terrain, with the western part of the state having a wetter climate and the eastern part being more arid. Record levels have been observed in recent years due to heavy snowfall and precipitation, but the state has also experienced drought conditions in some areas. Seasonal trends show that spring and early summer are the wettest times of the year, while late summer and fall are typically drier. Overall, reservoirs and dams play an important role in managing Montana's water resources and supporting various industries and recreational activities.