Monongahela River near Masontown, Pennsylvania water temperature
Monongahela River near Masontown, Pennsylvania · River
The current water temperature at Monongahela River near Masontown is 23.3 °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.
Measurement series & statistics
This measurement series includes 153 data points since July 23, 2026.
Lowest recorded value: 21.6 °C on July 24, 2026 · highest value: 25.9 °C on August 10, 2026.
In September, temperatures have ranged between 23.2 °C and 25.8 °C.
The current value is 1.3 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Monongahela River near Masontown right now?
The current water temperature is 23.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Monongahela River near Masontown?
Currently 23.3 °C (updated continuously).
How warm is at Monongahela River near Masontown in September?
In September, the water temperature recently averaged 24.6 °C.
When is the water warmest at Monongahela River near Masontown?
Across the measurement record, September is on average the warmest month (24.6 °C).
