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LakeQuality

Lehigh River

Monroe County, Pennsylvania. A state-stocked trout water. Running 1,020 cfs as of Aug 1, 2026, 6:30 PM UTC.

Latest Reading

1,020
cubic feet / second
77°F
water temperature (25°C)
6
USGS gauges

Flow measured Aug 1, 2026, 6:30 PM UTC at gauge 01449000. Temperature measured Aug 1, 2026, 5:45 PM UTC at gauge 01454700. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

This water was above the trout-stress threshold

Lehigh River read 77°F as of Aug 1, 2026, 5:45 PM UTC. Trout come under thermal stress above roughly 68°F, and mortality after catch-and-release rises sharply in warm water. Montana FWP restricts angling when max daily water temperature reaches 73F for 3 consecutive days.

At or above that threshold many anglers stop fishing for the day, fish early morning only, or move to colder water. We are reporting a measurement, not issuing an advisory — check your state agency for any restriction actually in force.

State Trout Classification

ClassificationStocked Trout Water
CountyMonroe

Source: PA Fish & Boat Commission (PASDA).

USGS Gauges on Lehigh River

GaugeStationWater temp?
01447500Lehigh River at Stoddartsville, PAYes
01447800Lehigh R bl Francis E Walter Res nr White Haven PAYes
01449000Lehigh River at Lehighton, PA
01451000Lehigh River at Walnutport, PA
01453000Lehigh River at Bethlehem, PA
01454700Lehigh River at Glendon, PAYes

Conditions: USGS NWIS (public domain). Classification: PA Fish & Boat Commission (PASDA).