Total streamflow across the Vermilion River was last observed at 8,016 cfs, and is expected to yield approximately 15,900 acre-ft of water today; about 67% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 12,038 cfs, with recent peaks last observed on 2024-01-20 when daily discharge volume was observed at 52,199 cfs.

Maximum discharge along the river is currently at the Vermilion River Near Vermilion Oh reporting a streamflow rate of 2,520 cfs. However, the streamgauge with the highest stage along the river is the Vermilion River At Surrey St. At Lafayette with a gauge stage of 10.01 ft. This river is monitored from 7 different streamgauging stations along the Vermilion River, the highest being situated at an altitude of 1,183 ft, the Vermilion River Nr Crane Lake.