Little Mahoning Creek at McCormick, Pennsylvania · River
The current water temperature at Little Mahoning Creek at McCormick is 17.6 °C (as of September 20, 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 151 data points since July 23, 2026.
Lowest recorded value: 15.6 °C on September 15, 2026 · highest value: 24.2 °C on September 2, 2026.
In September, temperatures have ranged between 15.6 °C and 24.2 °C.
The current value is 2.5 °C below the September average of this series.
Can you swim at Little Mahoning Creek at McCormick 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 Little Mahoning Creek at McCormick?
Currently 17.6 °C (updated continuously).
How warm is at Little Mahoning Creek at McCormick in September?
In September, the water temperature recently averaged 20.1 °C.
When is the water warmest at Little Mahoning Creek at McCormick?
Across the measurement record, September is on average the warmest month (20.1 °C).