4.21 ft Iowa DNR (natural lake ungated outlet)
level Reading is typical for late September.
Reading comes straight from U.S. Geological Survey National Water Information System (USGS gauge 06604200) and updates live when you load this page.
West Okoboji Lake through the year
The band is the lake's own normal: where the level has run on each calendar day, 1980–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.
This year vs the years that matter
This year's trace against last year and the driest and wettest years on record — the drought-context question every lake regular asks.
- 2026 (this year)
- 2025 (last year)
- 1993 (wettest on record)
- 1990 (driest on record)
Full pool, datum, and the gauge
"Full pool" here means the conservation pool — the level the lake is designed to hold for water supply and recreation, not the flood-control space above it. The full explainer covers flood pool and dead pool too.
| Full pool | not published by the operator |
|---|---|
| Gauge | USGS gauge 06604200 · U.S. Geological Survey National Water Information System |
| Datum | Iowa DNR (natural lake ungated outlet) — Gage height in local gauge datum (USGS lists site altitude 1391.65 ft NAVD88). Published spillway/OHW figures (IGLWSC 1395.8 ft NGVD29, OHWL 1397.768 ft MSL) are in datums that do not line up cleanly with the gauge datum, so no full-pool figure is recorded. |
| Last verified | August 15, 2026 |
LakeDates reports lake level, not ramp status. Whether a given ramp or marina is usable at this level varies ramp by ramp — call the marina before you tow.
Quick answers
What is the lake level for West Okoboji Lake today?
West Okoboji Lake is at 4.21 ft (Iowa DNR (natural lake ungated outlet)) as of September 24, 2026 — Reading is typical for late September.
Is West Okoboji Lake full?
Iowa DNR (natural lake, ungated outlet) doesn't publish a conservation-pool figure for West Okoboji Lake, so this page shows the reading against the lake's own seasonal history instead.
What is full pool for West Okoboji Lake?
Iowa DNR (natural lake, ungated outlet) doesn't publish a single conservation-pool elevation for West Okoboji Lake. The seasonal chart shows the range the lake actually runs instead.