Pecatonica River at Freeport, IL
Stephenson County, Illinois · USGS 05435500
Latest observation
What this gauge represents: This gauge measures conditions on Pecatonica River at its USGS monitoring location in Stephenson County; conditions elsewhere on the waterway may differ.
Observed · 26 minutes ago
Observed
How to read these numbers
How much water moves past the gauge each second. Higher numbers mean more water is moving downstream.
The water-surface height at this gauge. It is useful for tracking rises, falls and flood thresholds, but it is not the river's total depth.
How much the latest reading has risen or fallen compared with roughly 24 hours earlier.
The typical streamflow for this date based on USGS historical statistics. A multiple such as 3× means current flow is about three times the historical median.
Get Water Data's plain-language summary of current flow, historical context and recent direction.
Official action and flood thresholds where available. These levels are specific to each gauge location.
Gauge height and flood stage are station-specific. A 12-foot reading at one gauge should not be directly compared with 12 feet at another.
Above historical median · Falling
Streamflow is currently 1,390 ft³/s, 112% above the historical median for this date. Flow has fallen 300 CFS over the past 24 hours.
USGS-reported historical daily median for 09-27: 656 ft³/s · Based on USGS day-of-year statistics
How trends & context are calculated →Streamflow trend
Daily mean streamflow · Aug 28–Sep 25 · dates shown in UTC · 29 observations
Look at the data (29 rows)
| Date (UTC) | Daily mean |
|---|---|
| Aug 28, 2026, 12:00 AM | 704 CFS |
| Aug 29, 2026, 12:00 AM | 701 CFS |
| Aug 30, 2026, 12:00 AM | 696 CFS |
| Aug 31, 2026, 12:00 AM | 700 CFS |
| Sep 1, 2026, 12:00 AM | 712 CFS |
| Sep 2, 2026, 12:00 AM | 721 CFS |
| Sep 3, 2026, 12:00 AM | 718 CFS |
| Sep 4, 2026, 12:00 AM | 706 CFS |
| Sep 5, 2026, 12:00 AM | 716 CFS |
| Sep 6, 2026, 12:00 AM | 733 CFS |
| Sep 7, 2026, 12:00 AM | 721 CFS |
| Sep 8, 2026, 12:00 AM | 697 CFS |
| Sep 9, 2026, 12:00 AM | 704 CFS |
| Sep 10, 2026, 12:00 AM | 692 CFS |
| Sep 11, 2026, 12:00 AM | 693 CFS |
| Sep 12, 2026, 12:00 AM | 692 CFS |
| Sep 13, 2026, 12:00 AM | 668 CFS |
| Sep 14, 2026, 12:00 AM | 650 CFS |
| Sep 15, 2026, 12:00 AM | 670 CFS |
| Sep 16, 2026, 12:00 AM | 703 CFS |
| Sep 17, 2026, 12:00 AM | 775 CFS |
| Sep 18, 2026, 12:00 AM | 808 CFS |
| Sep 19, 2026, 12:00 AM | 999 CFS |
| Sep 20, 2026, 12:00 AM | 1,650 CFS |
| Sep 21, 2026, 12:00 AM | 2,130 CFS |
| Sep 22, 2026, 12:00 AM | 2,340 CFS |
| Sep 23, 2026, 12:00 AM | 2,420 CFS |
| Sep 24, 2026, 12:00 AM | 2,260 CFS |
| Sep 25, 2026, 12:00 AM | 1,870 CFS |
About this gauge
Official USGS station
Get Water Data organizes provisional public monitoring data from the U.S. Geological Survey.
View USGS station →