LaGrange Pool water level today
Reservoir in Brown, Illinois · Illinois River
429.20ft
130.82 m · NGVD29
Measured · provisional
Below normal for the dateFalling
What this means
It is lower than on Oct 21 in 7 of the last 10 years.
The lake has risen 0.38 ft in 7 days and fallen 0.02 ft in 30 days.
Since 2011, the lowest daily level was 427.16 ft (Sep 2026) and the highest 444.84 ft (May 2020).
LaGrange Pool level chart
Loading chart…
Measured
Normal range for the date (middle 50% of past years)
Same date in past years
| Date | Level | vs today |
|---|---|---|
| Oct 21, 2025 | 429.20 ft | 0.00 ft |
| Oct 21, 2024 | 429.27 ft | ▲ 0.07 ft |
| Oct 21, 2023 | 429.10 ft | ▼ 0.10 ft |
| Oct 21, 2022 | 429.25 ft | ▲ 0.05 ft |
| Oct 21, 2021 | 429.17 ft | ▼ 0.03 ft |
| Oct 21, 2020 | 429.14 ft | ▼ 0.06 ft |
| Oct 21, 2019 | 431.76 ft | ▲ 2.56 ft |
| Oct 21, 2018 | 429.21 ft | ▲ 0.01 ft |
| Oct 21, 2017 | 429.22 ft | ▲ 0.02 ft |
| Oct 21, 2016 | 429.22 ft | ▲ 0.02 ft |
Records & details
- Highest
- 444.84 ft on May 27, 2020
- Lowest
- 427.16 ft on Sep 23, 2026
- Records from
- 2011 (16 years of daily data)
- Outflow
- 13,818 cfs (391.3 m³/s)
- Water temperature
- Not measured here