Great Miami River water temperature
Great Miami River, Troy, Ohio · River
The current water temperature at Great Miami River is 21.7 °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.
Measurement series & statistics
This measurement series includes 86 data points since August 27, 2026.
Lowest recorded value: 21.6 °C on September 7, 2026 · highest value: 28.3 °C on September 3, 2026.
In September, temperatures have ranged between 21.6 °C and 28.3 °C.
The current value is 3.0 °C below the September average of this series.
Nearby waters
More measuring points: Great Miami River
Frequently asked questions
Can you swim at Great Miami River right now?
The current water temperature is 21.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Great Miami River?
Currently 21.7 °C (updated continuously).
How warm is at Great Miami River in September?
In September, the water temperature recently averaged 24.7 °C.
