Mississippi River At Rock Island

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Hydrograph

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

Latest Observation: Saturday August 29th, 2026 01:00 AM CDT
River Status: Normal

  Height Flow
Currently 3.99 ft 25.9 kcfs
Record 22.7 ft N/A

Forecast
  Date (CDT) Stage (ft) Flow (kcfs)
  Wednesday 12/31/1969 06:00 PM 0.00 N/A
  Saturday 08/29/2026 07:00 AM 4.20 28.10
  Saturday 08/29/2026 01:00 PM 4.20 28.10
  Saturday 08/29/2026 07:00 PM 4.10 27.10
  Sunday 08/30/2026 01:00 AM 4.00 26.00
  Sunday 08/30/2026 07:00 AM 3.90 24.70
  Sunday 08/30/2026 01:00 PM 3.90 24.70

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Friday 08/28/2026 10:10 PM 4.21 28.20
Friday 08/28/2026 10:20 PM 4.20 28.10
Friday 08/28/2026 10:30 PM 4.20 28.10
Friday 08/28/2026 10:40 PM 4.23 28.50
Friday 08/28/2026 10:50 PM 4.19 28.00
Friday 08/28/2026 11:00 PM 4.20 28.10
Friday 08/28/2026 11:10 PM 4.18 27.90
Friday 08/28/2026 11:20 PM 4.18 27.90
Friday 08/28/2026 11:30 PM 4.20 28.10
Friday 08/28/2026 11:40 PM 4.16 27.70
Friday 08/28/2026 11:50 PM 4.17 27.80
Saturday 08/29/2026 12:00 AM 4.14 27.50
Saturday 08/29/2026 12:10 AM 4.13 27.40
Saturday 08/29/2026 12:20 AM 4.08 26.80
Saturday 08/29/2026 12:30 AM 4.04 26.40
Saturday 08/29/2026 12:40 AM 4.02 26.20
Saturday 08/29/2026 12:50 AM 4.00 26.00
Saturday 08/29/2026 01:00 AM 3.99 25.90
Saturday 08/29/2026 01:10 AM 3.92 25.00
Saturday 08/29/2026 01:20 AM 3.92 25.00

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