What is the current flow on Little Lehigh Creek?

Little Lehigh Creek was running 81 cubic feet per second as of Aug 1, 2026, 12:45 PM CDT, measured at USGS gauge 01451650. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

Does Little Lehigh Creek hold wild trout?

Yes. The state classifies Little Lehigh Creek as Class A Wild Trout, with brown trout reproducing naturally across 9.62 miles of stream. That classification means natural reproduction, not stocking — though parts of it are also stocked. Source: PA Fish & Boat Commission (PASDA).

Is there public access on Little Lehigh Creek?

About 43% of the classified section of Little Lehigh Creek runs through public land, weighted across its sections. The remainder is private — access there requires landowner permission regardless of what the water is classified as.

Little Lehigh Creek, Pennsylvania: Wild Brown Trout

Q: What is the water temperature on Little Lehigh Creek?

69.3°F (20.7°C) as of Aug 1, 2026, 1:15 PM CDT, at USGS gauge 01451380. Trout come under thermal stress above about 68°F, and Montana FWP restricts angling when max daily water temperature reaches 73F for 3 consecutive days. This reading is at or above the 68°F stress threshold — many anglers stop fishing and conservation groups ask that trout not be played in warm water.

Latest Reading

cubic feet / second

69.3°F

water temperature (20.7°C)

USGS gauges

Flow measured Aug 1, 2026, 12:45 PM CDT at gauge 01451650. Temperature measured Aug 1, 2026, 1:15 PM CDT at gauge 01451380. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

Where Little Lehigh Creek is measured

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3 USGS gauges on Little Lehigh Creek — open one for its live readings on the USGS site. The other pins are places to stay, from Stay22.

This water was above the trout-stress threshold

Little Lehigh Creek read 69.3°F as of Aug 1, 2026, 1:15 PM CDT. 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

Classification	Class A Wild Trout
Reproducing species	Brown Trout
Classified length	9.62 miles
On public land	43%
Also stocked	Yes
County	Lehigh

Source: PA Fish & Boat Commission (PASDA).

USGS Gauges on Little Lehigh Creek

Gauge	Station	Water temp?
01451380	Little Lehigh Creek near Trexlertown, PA	Yes
01451500	Little Lehigh Creek near Allentown, PA	Yes
01451650	Little Lehigh Creek at Tenth St. Br. at Allentown	Yes

Stays via Stay22

Where to stay near Little Lehigh Creek

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