Vermilion River At Pontiac, Il Realtime Data
VERMILION RIVER AT PONTIAC, IL
Realtime Data • Report • Conditions
178
Discharge (cfs)
3.5
Gauge Height (ft)
USGS 05554500
Streamflow discharge was last observed at 178 cfs, and a gauge height of 3.54 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 379 .
Weather today, Tomorrow,
The river has several tributaries, including the Sangamon River and the Middle Fork Vermilion River, and is impounded by the Lake Vermilion Dam. Seasonal trends show that the river experiences higher flows in the spring due to snowmelt and increased rainfall, while lower flows occur in the summer and fall. Interestingly, the Vermilion River has been designated as an Illinois State Scenic River due to its natural beauty and recreational opportunities.
July 15, 2026
| Elevation | 661.0 ft |
| Last Updated | |
| Gage height, ft | 3.54 ft |
| Temperature, air, °C | 23.3 deg C |
| Temperature, water, degC | 24.7 deg C |
| Streamflow, ft³/s | 178.0 ft3/s |
| Percent of Normal | 131% |
| Year Over Year Average | 135 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 11,000 cfs |
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