Flathead Lake lake and shoreline

Flathead Lake Water Level

Montana

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Flathead Lake

Flathead Lake is currently at a water-surface elevation of 2891.6 feet.

2891.56 ft · Updated 2 hours ago · U.S. Geological Survey (USGS)

Current level

2,891.56ft

Status unavailable

Since last reading

Down 0.05 ft

Previous readingOct 242,891.64 ft

7-day change

Down 0.31 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Down 1.29 ft

30 daily readings in the last 30 days

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Water Level History

Current
2891.56 ft
24h
-0.05 ft
7d
-0.31 ft
30d
-1.29 ft

Elevation (ft) Water-surface elevation (ft)

Reference line is designed full pool.

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Lake Level Context

Current lake level

Flathead Lake is currently 2891.56 ft. The lake has fallen 0.31 ft over the past 7 days and 1.29 ft over the past 30 days.

Flathead Lake Level Details

Reference elevations, recent daily readings, data sources, and answers to common questions.

Conditions & Reference

Level status

Summary updating

This comparison needs the current level and full pool. We use the live feed when present, otherwise the latest daily summary when it includes a pool comparison.

DatumVertical reference for published pool and stage elevations at this lake (from the lake catalog).
Water-surface elevation (ft)
Elevation reference
Not available
Source
U.S. Geological Survey (USGS)

Reference levels

No published reference elevations for this lake.

Surrounding county drought

No Drought

Dominant category Abnormally Dry (D0); not counted as official drought.

Severity

NoneExtreme
Trend
Stable

Surrounding county drought

Lake County, MT

No Drought

No Drought. No USDM drought categories are reported for Lake County, MT. These figures describe the surrounding county from the lake location, not the lake itself.. Trend: Stable compared with last week. Official drought (D1–D4) no

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought (D1–D4)

No

Abnormally Dry (D0) is present in the surrounding county, but D0 is not counted as official drought (D1–D4).

U.S. Drought Monitor · map date Oct 20, 2026. Updated weekly. Official drought means U.S. Drought Monitor categories D1–D4 (Moderate through Exceptional). Abnormally Dry (D0) is not counted as official drought. droughtmonitor.unl.eduView drought map for Lake County, MT

Daily level summary

DateLevelChange
Oct 25, 20262,891.59-0.05
Oct 24, 20262,891.64-0.04
Oct 23, 20262,891.68-0.07
Oct 22, 20262,891.75-0.01
Oct 21, 20262,891.76-0.07
Oct 20, 20262,891.83-0.04
Oct 19, 20262,891.87-0.03

Common questions about Flathead Lake’s water level

  • The current water level at Flathead Lake is 2,891.56 ft (updated 2 hours ago). You can track the Flathead Lake lake level on the interactive chart and daily history above.

  • The current 7-day trend for the Flathead Lake lake level is falling — falling about 0.31 ft over the past week. See the history chart above for the full picture.

  • Readings refresh when U.S. Geological Survey (USGS) publishes new gauge data — typically daily for most reservoirs. The timestamp above the chart shows when the latest observation arrived on Lake Insights.

Lake level glossary

Definitions for pool targets, datums, and how elevation readings are labeled.

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