Coralville Lake Reservoir MET Station water level today
Reservoir in Johnson, Iowa · Iowa River
686.22ft
209.16 m · NGVD29
Measured · provisional
Normal for the dateSteady
What this means
Coralville Lake Reservoir MET Station is 3.22 ft above its full pool of 683.00 ft.
It is lower than on Oct 21 in 5 of the last 10 years.
The lake has risen 0.29 ft in 7 days and fallen 1.20 ft in 30 days.
Since 2011, the lowest daily level was 604.24 ft (Jan 2012) and the highest 710.93 ft (Oct 2018).
Coralville Lake Reservoir MET Station level chart
Loading chart…
Measured
Normal range for the date (middle 50% of past years)
Full pool
Same date in past years
| Date | Level | vs today |
|---|---|---|
| Oct 21, 2025 | 686.34 ft | ▲ 0.12 ft |
| Oct 21, 2024 | 685.49 ft | ▼ 0.73 ft |
| Oct 21, 2023 | 682.64 ft | ▼ 3.58 ft |
| Oct 21, 2022 | 685.16 ft | ▼ 1.06 ft |
| Oct 21, 2021 | 685.53 ft | ▼ 0.69 ft |
| Oct 21, 2020 | 686.24 ft | ▲ 0.02 ft |
| Oct 21, 2019 | 686.93 ft | ▲ 0.71 ft |
| Oct 21, 2018 | 710.68 ft | ▲ 24.46 ft |
| Oct 21, 2017 | 685.78 ft | ▼ 0.44 ft |
| Oct 21, 2016 | 696.97 ft | ▲ 10.75 ft |
Records & details
- Highest
- 710.93 ft on Oct 18, 2018
- Lowest
- 604.24 ft on Jan 26, 2012
- Records from
- 2011 (16 years of daily data)
- Full pool
- 683.00 ft (top of conservation pool, U.S. Army Corps of Engineers)
- Storage
- 41,223 acre-ft
- Inflow
- 4,967 cfs (140.7 m³/s)
- Outflow
- 4,965 cfs (140.6 m³/s)
- Water temperature
- Not measured here
Weather & wind
Tonight50°F · Mostly Clear
Wind 0 mph
Wind 0 mph
Thursday77°F · Sunny
Wind S 0 to 5 mph
Wind S 0 to 5 mph
Thursday Night52°F · Mostly Clear
Wind SE 0 to 5 mph
Wind SE 0 to 5 mph
Friday75°F · Sunny
Wind SE 5 to 10 mph
Wind SE 5 to 10 mph
Friday Night55°F · Partly Cloudy
Wind SE 5 to 10 mph
Wind SE 5 to 10 mph
Saturday75°F · Partly Sunny
Wind S 5 to 10 mph
Wind S 5 to 10 mph
NOAA National Weather Service forecast for this lake's location, updated 13 min ago.