What is the current water level at Lake Koocanusa?

The current water level at Lake Koocanusa is 2,440.63 ft (updated 33 hours ago). See the live chart and daily history on this page for trends.

How often is Lake Koocanusa lake level data updated?

Readings are refreshed when U.S. Bureau of Reclamation publishes new gauge data — typically daily for most reservoirs. The timestamp above the chart shows when the latest observation arrived on Lake Insights.

What is full pool for Lake Koocanusa?

Full pool for Lake Koocanusa is 2,459 ft — the normal conservation target when the reservoir is at its designed summer or operating pool.

How far above or below full pool is Lake Koocanusa?

Lake Koocanusa is currently −18.37 ft vs full pool relative to full pool on the latest gauge reading.

Lake Koocanusa

Montana

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Current level

2,440.63ft

−18.37 ft vs full pool

24h change

+0.85 ft

vs prior daily summary

Trend

Rising

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Gear

BUBBA Culling Set - Compatible Smart Fish Scales - Tournament Fishing Accessory to Track Catches

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Current level

2,440.63 ft

−18.37 ft vs full pool

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Since last reading

+0.85 ft

Yesterday

Jul 1

2,439.78ft

7-day change

+6.07 ft

Net change vs. reading nearest 7 days ago

7 daily readings in the last 7 days · Hover for date and level

30-day change

+2,434.07 ft

Net change vs. reading nearest 30 days ago

9 daily readings in the last 30 days · Hover for date and level

Gear

Beyond Fishing 6.5" Pro Fishing Shears Dual Serrated Blades, Fishing Braided Line Scissors with Titanium Coating, Non-Slip Grip & Multifunction Tool, Includes Hard Molded Locking Sheath

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Lake level trend

Elevation (ft) MSL

Reference line uses full pool when that elevation is available for this lake.

Level breakdown

Full Pool: 2,459 ft
Current Level: 2,440.63 ft
Difference: -18.37 ft

DatumVertical reference for published pool and stage elevations at this lake (from the lake catalog).: Not available
Elevation reference: MSL
Source: U.S. Bureau of Reclamation

Level breakdown & datum

Full Pool: 2,459 ft
Current Level: 2,440.63 ft
Difference: -18.37 ft

DatumVertical reference for published pool and stage elevations at this lake (from the lake catalog).: Not available
Elevation reference: MSL
Source: U.S. Bureau of Reclamation

Level thresholds

Published elevations from lake operators when provided by the data service.

Flood stageNot available
Full pool2,459 ft
Winter poolNot available

Level thresholds

Published elevations from lake operators when provided by the data service.

Flood stageNot available
Full pool2,459 ft
Winter poolNot available

Watershed drought

Lincoln County, MT

No Drought

Stable

No official drought conditions.

Severity

NoneExtreme

Official drought: 3.9% of watershed in official drought (D1+).

Gear & Essentials

· curated for Lake Koocanusa

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7 & 30 day trends

7-day change

+6.07 ft

7 daily readings in the last 7 days · Hover for date and level

30-day change

+2,434.07 ft

9 daily readings in the last 30 days · Hover for date and level

Daily level summary

Jul 2, 2026
2,440.63 ft
+0.85 ft
Jul 1, 2026
2,439.78 ft
+2.09 ft
Jun 29, 2026
2,437.69 ft
+1.21 ft
Jun 28, 2026
2,436.48 ft
+0.69 ft
Jun 27, 2026
2,435.79 ft
+0.64 ft
Jun 26, 2026
2,435.15 ft
+0.59 ft
Jun 25, 2026
2,434.56 ft
+0.57 ft

Date	Level (ft)	Change (ft)
Jul 2, 2026	2,440.63	+0.85
Jul 1, 2026	2,439.78	+2.09
Jun 29, 2026	2,437.69	+1.21
Jun 28, 2026	2,436.48	+0.69
Jun 27, 2026	2,435.79	+0.64
Jun 26, 2026	2,435.15	+0.59
Jun 25, 2026	2,434.56	+0.57
Jun 24, 2026	2,433.99	+0.53
Jun 23, 2026	2,433.46	+2,426.9
May 27, 2026	6.56	+0.57
May 26, 2026	5.99	+0.5
May 25, 2026	5.49	+0.49
May 24, 2026	5	+0.55
May 23, 2026	4.45	+0.18

Lake Koocanusa water level — common questions

What is the current water level at Lake Koocanusa?: The current water level at Lake Koocanusa is 2,440.63 ft (updated 33 hours ago). See the live chart and daily history on this page for trends.
How often is Lake Koocanusa lake level data updated?: Readings are refreshed when U.S. Bureau of Reclamation publishes new gauge data — typically daily for most reservoirs. The timestamp above the chart shows when the latest observation arrived on Lake Insights.
What is full pool for Lake Koocanusa?: Full pool for Lake Koocanusa is 2,459 ft — the normal conservation target when the reservoir is at its designed summer or operating pool.
How far above or below full pool is Lake Koocanusa?: Lake Koocanusa is currently −18.37 ft vs full pool relative to full pool on the latest gauge reading.

Lake level glossary

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

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Lake Koocanusa

Lake level trend

Level breakdown

Level thresholds

Watershed drought

Daily level summary

Lake Koocanusa water level — common questions

Lake level glossary