Lake Lowell and Deer Flat Dams Water Level

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

2524.91 ft

Lake Lowell and Deer Flat Dams is high for this time of year and falling (-0.33 ft in the last 7 days).

Change since yesterday: -0.09 ft

Reading as of 2026-08-14 · higher than 89% of August readings on record

Where Lake Lowell and Deer Flat Dams sits historically

TODAY 2524.91 ftRECORD LOW1501 ft2026-05-16RECORD HIGH2530.44 ft2025-05-25

Today's level compared with every reading in our 4.5-year record for this lake.

Since yesterday

-0.09 ft

7-day change

-0.33 ft

30-day change

-1.58 ft

1-year change

+1.11 ft

Last 30 days

2026-07-152524.7–2526.7 ft2026-08-14

Last 12 months

2025-08-141377.7–2652.0 ft2026-08-14

Full history (4.5 years)

2022-02-201377.5–2654.0 ft2026-08-13

Lake Lowell and Deer Flat Dams records and averages

Current level2524.91 ft
Record high2530.44 ft (2025-05-25)
Record low1501.0 ft (2026-05-16)
Average of all readings2523.34 ft
Data span4.5 years (2,000 readings)

Frequently asked questions

Is Lake Lowell and Deer Flat Dams full right now?

As of 2026-08-14, Lake Lowell and Deer Flat Dams sits at 2524.91 ft, which is high for this time of year.Over the past 30 days the level has fallen 1.58 ft.

What is the water level at Lake Lowell and Deer Flat Dams today?

The most recent reading is 2524.91 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 Lake Lowell and Deer Flat Dams has ever been?

The highest level in our records is 2530.44 ft on 2025-05-25. The lowest is 1501.0 ft on 2026-05-16. Our record covers about 4.5 years of readings.

Is Lake Lowell and Deer Flat Dams low for this time of year?

Compared with every August in our records, the current level is higher than 89% of them — high 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 Lake Lowell and Deer Flat Dams 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. Lake Lowell and Deer Flat Dams has fallen 1.58 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 Lake Lowell and Deer Flat Dams changed over the past year?

The level is +1.11 ft compared with this date last year (2524.91 ft today). The full-history chart above covers 4.5 years, with a record high of 2530.44 ft and a record low of 1501.0 ft.

Nearby lakes in Idaho

Black Canyon Reservoir water level
2497.75 ft · steady
Lucky Peak Lake water level
3048.0 ft · falling
Arrowrock Reservoir water level
3110.97 ft · falling
CJ STRIKE Reservoir water level
54.79 ft · steady
Lake Cascade and Cascade water level
4819.15 ft · falling
Deadwood Reservoir water level
5315.59 ft · falling

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