Waterlands
Rock River
USGS · 05437500
ROCK RIVER
USGS · 05437500LIVE

ROCK RIVER AT ROCKTON, IL

ILLINOIS42.4503°N, -89.0725°W Updated 23 hr ago
FLOW RATE
4,751cfs
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
4,751cfs 23.3% vs avg
Optimal band: 3,573–4,835 cfs
PERIOD HIGH
21,828cfs
PERIOD LOW
2,510cfs
RUNNABLE
21%
last 1 year in band
Precipitation History
Your History · ROCK RIVER AT ROCKTON, IL

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Station Location

42.4503, -89.0725
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DATA · USGS · NOAA · NWSUPDATED 2026-07-05 00:00 UTC
Site #05437500·USGS

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