Cedar Creek, Mouth near Allentown, Pennsylvania · River
The current water temperature at Cedar Creek is 17.6 °C (as of September 21, 2026, source: USGS).
A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.
This measurement series includes 144 data points since July 23, 2026.
Lowest recorded value: 16.7 °C on September 7, 2026 · highest value: 23.1 °C on August 3, 2026.
In September, temperatures have ranged between 16.7 °C and 23.1 °C.
The current value is 1.8 °C below the September average of this series.
Can you swim at Cedar Creek right now?
The current water temperature is 17.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Cedar Creek?
Currently 17.6 °C (updated continuously).
How warm is at Cedar Creek in September?
In September, the water temperature recently averaged 19.4 °C.
When is the water warmest at Cedar Creek?
Across the measurement record, July is on average the warmest month (20.8 °C).