Illinois River At Lagrange Lock And Dam

Back to River Summary

Stage Color Key
21 ft - Near Flood 23 ft - Minor Flood 27 ft - Moderate Flood 29 ft - Major Flood

Latest Observation: Tuesday February 18th, 2025 06:00 PM CST
River Status: Normal

  Height Flow
Currently 6.95 ft 5.67 kcfs
Record 34.66 ft 126400 cfs

Forecast
  Date (CST) Stage (ft) Flow (kcfs)
  Wednesday 12/31/1969 06:00 PM 0.00 N/A
  Tuesday 02/18/2025 06:00 PM 7.20 6.30
  Wednesday 02/19/2025 12:00 AM 7.20 6.30
  Wednesday 02/19/2025 06:00 AM 7.20 6.30
  Wednesday 02/19/2025 12:00 PM 7.20 6.30
  Wednesday 02/19/2025 06:00 PM 7.20 6.30
  Thursday 02/20/2025 12:00 AM 7.20 6.30

Observation
  Date (CST) Stage (ft) Flow (kcfs)
Tuesday 02/18/2025 09:00 AM 7.20 6.30
Tuesday 02/18/2025 09:30 AM 7.24 6.60
Tuesday 02/18/2025 10:00 AM 7.26 6.75
Tuesday 02/18/2025 10:30 AM 7.22 6.45
Tuesday 02/18/2025 11:00 AM 7.20 6.30
Tuesday 02/18/2025 11:30 AM 7.19 6.27
Tuesday 02/18/2025 12:00 PM 7.20 6.30
Tuesday 02/18/2025 12:30 PM 7.21 6.37
Tuesday 02/18/2025 01:00 PM 7.18 6.25
Tuesday 02/18/2025 01:30 PM 7.17 6.22
Tuesday 02/18/2025 02:00 PM 7.17 6.22
Tuesday 02/18/2025 02:30 PM 7.14 6.15
Tuesday 02/18/2025 03:00 PM 7.32 7.23
Tuesday 02/18/2025 03:30 PM 7.11 6.07
Tuesday 02/18/2025 04:00 PM 7.10 6.04
Tuesday 02/18/2025 04:30 PM 7.11 6.07
Tuesday 02/18/2025 05:00 PM 7.08 5.99
Tuesday 02/18/2025 05:30 PM 7.10 6.04
Tuesday 02/18/2025 06:00 PM 6.95 5.67
Tuesday 02/18/2025 06:30 PM 7.07 5.97

Hydrograph

Data Courtesy of the Advanced Hydrologic Prediction Service
Script Courtesy of Dennis at East Masonville Weather with mods by Saratoga-weather.org