Oswego River

Last Updated: April 25, 2026

Total streamflow across the Oswego River was last observed at 17,100 cfs, and is expected to yield approximately 33,917 acre-ft of water today; about 164% of normal. River levels are high. Average streamflow for this time of year is 10,415 cfs, with recent peaks last observed on 2011-05-01 when daily discharge volume was observed at 27,000 cfs.

Maximum discharge along the river is currently at the Oswego River At Lock 7 reporting a streamflow rate of 17,100 cfs. However, the streamgauge with the highest stage along the river is the Oswego River At Harrisville Nj with a gauge stage of 10.27 ft. This river is monitored from 2 different streamgauging stations along the Oswego River, the highest being situated at an altitude of 254 ft, the Oswego River At Lock 7.

The Oswego River is a 23-mile-long river located in upstate New York that flows into Lake Ontario.


15-Day Long Term Forecast


River Details

Last Updated 2026-04-25
Discharge Volume 33,917 ACRE-FT
Streamflow 17,100.0 cfs
Past 24 Hours: -700.0 cfs (-3.93%)
Percent of Normal 164.18%
Maximum 27,000.0 cfs
2011-05-01
Seasonal Avg 10,415 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Oswego River At Lock 7
USGS 04249000
17100 cfs 8.37 ft -7.77
Oswego River At Harrisville Nj
USGS 01410000
36 cfs 10.27 ft -11.25
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Oswego River is a 23.7-mile-long (38.1 km) tributary of the Wading River in the southern New Jersey Pine Barrens in the United States.