Lake Cascade lake and shoreline

Lake Cascade Water Level

Idaho

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Lake Cascade is currently 11.8 feet below full pool, with a water-surface elevation of 4816.2 feet.

4816.20 ft · Updated 1 day ago · U.S. Bureau of Reclamation (USBR)

Current level

4,816.2ft

−11.80 ft vs full pool

Low

Vs full pool

Since last reading

Down 0.07 ft

Previous readingSep 84,816.27 ft

7-day change

Down 0.20 ft

7-day trend: Falling

4 daily readings in the last 7 days

30-day change

Down 0.20 ft

4 daily readings in the last 30 days

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Water Level History

Elevation (ft) NGVD29 · MSL

4818 ft4822 ft4827 ftFULL POOL 4828.00 ftSep 7Sep 10

Level status

11.8 ft below full pool

Current level
4,816.2 ft
Full pool
4,828 ft
DatumElevation referenced to National Geodetic Vertical Datum of 1929.
NGVD29
Elevation reference
MSL
Source
U.S. Bureau of Reclamation (USBR)

Reference levels

  • Full pool4,828 ft

Watershed drought

Abnormally Dry

1.9% of watershed in official drought (D1+).

Severity

NoneExtreme
Trend
Improving

Watershed drought conditions

Valley County, ID

Abnormally Dry

Abnormally Dry. The surrounding county is abnormally dry, which is not official drought.. Trend: Improving compared with last week. Official drought yes

Severity

NoneExtreme

Weekly trend

Improving

Compared with last week

Official drought

Yes

1.9% of the watershed is currently classified as official drought (D1+).

U.S. Drought Monitor · map date Sep 8, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Valley County, ID

Daily level summary

  • Sep 9, 2026

    4,816.2 ft

    -0.07 ft

  • Sep 8, 2026

    4,816.27 ft

    -0.07 ft

  • Sep 7, 2026

    4,816.34 ft

    -0.06 ft

  • Sep 6, 2026

    4,816.4 ft

    —

Common questions about Lake Cascade’s water level

  • The current water level at Lake Cascade is 4,816.2 ft (updated 1 day ago). You can track the Lake Cascade lake level on the interactive chart and daily history above.

  • Full pool for Lake Cascade is 4,828 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Lake Cascade lake level is falling — falling about 0.20 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Lake Cascade is currently 11.80 ft below full pool.

Lake level glossary

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

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