Mississippi River At Illinois City

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Hydrograph

Stage Color Key
14 ft - Near Flood 15 ft - Minor Flood 16 ft - Moderate Flood 18 ft - Major Flood

Latest Observation: Thursday August 20th, 2026 08:30 PM CDT
River Status: Normal

  Height Flow
Currently 3.99 ft 38.3 kcfs
Record 24.1 ft N/A

Forecast
  Date (CDT) Stage (ft) Flow (kcfs)
  Wednesday 12/31/1969 06:00 PM 0.00 N/A
  Thursday 08/20/2026 07:00 PM 3.80 35.40
  Friday 08/21/2026 01:00 AM 3.80 35.40
  Friday 08/21/2026 07:00 AM 3.80 35.40
  Friday 08/21/2026 01:00 PM 3.80 35.40
  Friday 08/21/2026 07:00 PM 3.80 35.40
  Saturday 08/22/2026 01:00 AM 3.80 35.40

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Thursday 08/20/2026 05:10 PM 3.95 37.70
Thursday 08/20/2026 05:20 PM 3.95 37.70
Thursday 08/20/2026 05:30 PM 3.96 37.80
Thursday 08/20/2026 05:40 PM 3.96 37.80
Thursday 08/20/2026 05:50 PM 3.96 37.80
Thursday 08/20/2026 06:00 PM 3.96 37.80
Thursday 08/20/2026 06:10 PM 3.96 37.80
Thursday 08/20/2026 06:20 PM 3.96 37.80
Thursday 08/20/2026 06:30 PM 3.96 37.80
Thursday 08/20/2026 06:40 PM 3.96 37.80
Thursday 08/20/2026 06:50 PM 3.96 37.80
Thursday 08/20/2026 07:00 PM 3.97 38.00
Thursday 08/20/2026 07:10 PM 3.97 38.00
Thursday 08/20/2026 07:20 PM 3.97 38.00
Thursday 08/20/2026 07:30 PM 3.99 38.30
Thursday 08/20/2026 07:40 PM 3.97 38.00
Thursday 08/20/2026 07:50 PM 3.98 38.10
Thursday 08/20/2026 08:00 PM 3.99 38.30
Thursday 08/20/2026 08:10 PM 3.99 38.30
Thursday 08/20/2026 08:20 PM 3.98 38.10

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