Lake Walcott

Name: Lake Walcott (Idaho) water level
Creator: U.S. Bureau of Reclamation

Idaho · Reclamation gauge

Grey bar: 12-month range 4,237.2–4,244.9 ft.

Water level · NAVD88

4,237.73FT

Storage 16,740 acre-feet

The source publishes no % full figure.

7 days +0.16 ft30 days −3.64 ft

Reading for Oct 24, 2026 · page refreshed Oct 25, 21:11 UTC
Source: U.S. Bureau of Reclamation (RISE)

Worth going today?This Afternoon

Looks good

Light wind, dry

Wind7 mph

Rain0%

Temp58°F

Level4,237.7 ft

This AfternoonSunny · 58°F
E 7 mph · rain 0%

TonightPartly Cloudy then Patchy Fog · 39°F
ESE 3 to 9 mph · rain 0%

NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Level history

30 days1 year

Field notes

Lake Walcott's latest daily level (Oct 24, 2026) is 4,237.73 (NAVD88) ft.

Reclamation reports storage of 16,740 acre-feet for the same day.

Over the past 7 days the lake has been rising (+0.16 ft), and it is −3.64 ft over 30 days.

Readings come from the Bureau of Reclamation's daily reservoir data for Lake Walcott, Minidoka Dam, and Minidoka Powerplant (MIN).

Lake facts

Storage (latest)	16,740 acre-feet
Gauge / station	Lake Walcott, Minidoka Dam, and Minidoka Powerplant (MIN)
Elevation datum	ft (NAVD88)
Gauge location	42.6699, -113.4830

Nearby lakes

Milner Lake29 mi W8.88 ft−0.57 ft American Falls Reservoir32 mi E4,315.74 ft+3.00 ft Little Wood River Reservoir59 mi NW5,182.76 ft+2.25 ft Newton Reservoir94 mi SE · UT4,727.50 ft+0.70 ft Great Salt Lake Breach107 mi S · UT4,190.10 ft+0.10 ft

Common questions

Is Lake Walcott rising or falling?

Over the last 7 days it changed +0.16 ft and over 30 days −3.64 ft.

How full is Lake Walcott?

Reclamation publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.

How often is this page updated?

The page is rebuilt automatically every day from Reclamation's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Bureau of Reclamation's RISE data portal (data.usbr.gov). Forecasts come from the National Weather Service.

Daily values published by the Bureau of Reclamation. Reclamation data are provisional and subject to revision unless otherwise noted. This page is not affiliated with or endorsed by the Bureau of Reclamation. See data sources.