Waterlands
Rock River
USGS · 05440700
ROCK RIVER
USGS · 05440700LIVE

ROCK RIVER AT BYRON, IL

ILLINOIS42.1222°N, -89.2554°W Updated 42 min ago
FLOW RATE
3,390cfs
GAUGE HT
5.63ft
WATER TEMP
74°F
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
3,390cfs 41.3% vs avg
Optimal band: 2,882–3,898 cfs
PERIOD HIGH
3,540cfs
PERIOD LOW
3,310cfs
RUNNABLE
100%
last 1 day in band

Gauge Height

5.63ft

Water Temperature

74.3°F
Weather Map

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Station Location

42.1222, -89.2554
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DATA · USGS · NOAA · NWSUPDATED 2026-09-01 13:15 UTC
Site #05440700·USGS

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