Mahoning River

Last Updated: April 19, 2026

Total streamflow across the Mahoning River was last observed at 10,952 cfs, and is expected to yield approximately 21,723 acre-ft of water today; about 236% of normal. River levels are high. Average streamflow for this time of year is 4,645 cfs, with recent peaks last observed on 2022-02-18 when daily discharge volume was observed at 37,072 cfs.

Maximum discharge along the river is currently at the Mahoning River At Lowellville Oh reporting a streamflow rate of 3,940 cfs. However, the streamgauge with the highest stage along the river is the Mahoning River At Leavittsburg Oh with a gauge stage of 7.4 ft. This river is monitored from 5 different streamgauging stations along the Mahoning River, the highest being situated at an altitude of 951 ft, the Mahoning River Bl Berlin Dam Nr Berlin Center Oh.

The Mahoning River is a 113-mile-long river in Ohio, running through the cities of Youngstown, Warren, and Newton Falls.


15-Day Long Term Forecast


River Details

Last Updated 2026-04-19
Discharge Volume 21,723 ACRE-FT
Streamflow 10,952.0 cfs
Past 24 Hours: +206.0 cfs (+1.92%)
Percent of Normal 235.8%
Maximum 37,072.0 cfs
2022-02-18
Seasonal Avg 4,645 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Mahoning River Bl Berlin Dam Nr Berlin Center Oh
USGS 03090500
458 cfs 2.86 ft -2.97
Mahoning River At Pricetown Oh
USGS 03091500
654 cfs 3.84 ft 0
Mahoning River At Leavittsburg Oh
USGS 03094000
2220 cfs 7.4 ft 6.22
Mahoning River Below West Ave At Youngstown Oh
USGS 03098600
3680 cfs 6.3 ft -0.54
Mahoning River At Lowellville Oh
USGS 03099500
3940 cfs 5.51 ft 2.87
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Mahoning River is a river located in northeastern Ohio and a small portion of western Pennsylvania. Flowing primarily through several Ohio counties, it then crosses the state line into Pennsylvania before joining with the Shenango River to form the Beaver River. The Mahoning River drops from 764 feet (233 m) at the headwaters near Winona to 233 feet (71 m) at the outfall near Mahoningtown. It is part of the Ohio River watershed.