SOUTH FORK SANGAMON RIVER NEAR ROCHESTER, IL

SANGAMON COUNTY, IL39.7422°N, -89.5673°W Updated 28 min ago

FLOW RATE

260cfs

GAUGE HT

8.77ft

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

260cfs 66.4% vs avg

Optimal band: 200–270 cfs

PERIOD HIGH

278cfs

PERIOD LOW

215cfs

RUNNABLE

98%

last 1 day in band

Gauge Height

8.77ft

Precipitation History

Your History · SOUTH FORK SANGAMON RIVER NEAR ROCHESTER, IL

Track your history

Sign in to track your sessions at SOUTH FORK SANGAMON RIVER NEAR ROCHESTER, IL — best days, monthly trends, and time on the water.

39.7422, -89.5673

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-07-07 17:45 UTC

Site #05576000·USGS

Create a free account to save favorites, set flow alerts, and track conditions