Mann Lake water level today
Reservoir in Idaho
1,788.28ft
545.07 m · NAVD88
Measured · provisional
24 hours
▼ 0.09 ft
7 days
▼ 0.64 ft
30 days
–
What this means
The lake has fallen 0.64 ft in 7 days.
Since 2026, the lowest daily level was 1,788.28 ft (Oct 2026) and the highest 1,789.69 ft (Oct 2026).
Mann Lake level chart
Loading chart…
Measured
Normal range for the date (middle 50% of past years)
Records & details
- Highest
- 1,789.69 ft on Oct 7, 2026
- Lowest
- 1,788.28 ft on Oct 21, 2026
- Records from
- 2026 (0 years of daily data)
- Storage
- 856 acre-ft
- Water temperature
- Not measured here
Reservoir A Dam
- Height
- 61 ft
- Completed
- 1907
- Purposes
- Irrigation
- Owner
- BUREAU OF RECLAMATION
- Normal storage
- 3,300 acre-ft
- Surface area
- 155 acres
National Inventory of Dams (U.S. Army Corps of Engineers). All dam facts →
Boat ramps on Mann Lake
1 ramp listed. Links open the ramp's location on OpenStreetMap. Check the managing agency for closures, especially at low water. All Idaho boat ramps →
Weather & wind
This Afternoon56°F · Sunny
Wind W 9 to 18 mph
Wind W 9 to 18 mph
Tonight30°F · Mostly Clear then Widespread Frost
Wind S 3 to 8 mph
Wind S 3 to 8 mph
Saturday58°F · Widespread Frost then Sunny
Wind E 5 mph
Wind E 5 mph
Saturday Night32°F · Mostly Cloudy
Wind E 2 to 6 mph
Wind E 2 to 6 mph
Sunday63°F · Partly Sunny
Wind E 2 to 6 mph
Wind E 2 to 6 mph
Sunday Night37°F · Mostly Cloudy
Wind E 5 mph
Wind E 5 mph
NOAA National Weather Service forecast for this lake's location, updated 22 min ago.