Seminoe Reservoir Water Level

Wyoming · updated daily from the U.S. Bureau of Reclamation

6300.98 ft

Seminoe Reservoir is low for this time of year and falling (-1.32 ft in the last 7 days).

Change since yesterday: -0.22 ft

Reading as of 2026-08-14 · higher than 0% of August readings on record

Where Seminoe Reservoir sits historically

TODAY 6300.98 ftRECORD LOW6300.2 ft2022-03-13RECORD HIGH6349.8 ft2023-06-28

Today's level compared with every reading in our 5.5-year record for this lake.

Since yesterday

-0.22 ft

7-day change

-1.32 ft

30-day change

-8.22 ft

1-year change

-14.93 ft

Last 30 days

2026-07-156300.0–6310.2 ft2026-08-14

Last 12 months

2025-08-146299.2–6317.7 ft2026-08-14

Full history (5.5 years)

2021-02-266294.3–6355.7 ft2026-08-13

Seminoe Reservoir records and averages

Current level6300.98 ft
Record high6349.8 ft (2023-06-28)
Record low6300.2 ft (2022-03-13)
Average of all readings6321.56 ft
Data span5.5 years (2,000 readings)

Frequently asked questions

Is Seminoe Reservoir full right now?

As of 2026-08-14, Seminoe Reservoir sits at 6300.98 ft, which is low for this time of year.Over the past 30 days the level has fallen 8.22 ft.

What is the water level at Seminoe Reservoir today?

The most recent reading is 6300.98 ft (2026-08-14), sourced from the U.S. Bureau of Reclamation. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Seminoe Reservoir has ever been?

The highest level in our records is 6349.8 ft on 2023-06-28. The lowest is 6300.2 ft on 2022-03-13. Our record covers about 5.5 years of readings.

Is Seminoe Reservoir low for this time of year?

Compared with every August in our records, the current level is higher than 0% of them — low for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Why is Seminoe Reservoir low right now?

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Seminoe Reservoir has fallen 8.22 ft over the past 30 days. For the operational reason on any given week, check the U.S. Bureau of Reclamation directly.

How much has Seminoe Reservoir changed over the past year?

The level is -14.93 ft compared with this date last year (6300.98 ft today). The full-history chart above covers 5.5 years, with a record high of 6349.8 ft and a record low of 6300.2 ft.

Nearby lakes in Wyoming

Pathfinder Reservoir water level
5785.94 ft · falling
Alcova Reservoir water level
5498.67 ft · steady
Gray Reef Reservoir water level
5330.94 ft · rising
Boysen Reservoir water level
4711.74 ft · falling
Glendo Reservoir water level
4588.44 ft · falling
Pilot Butte Reservoir water level
5451.39 ft · falling

Source: the U.S. Bureau of Reclamation. Readings are provisional and subject to revision by the publishing agency. All Wyoming lake levels.