Big Walnut Creek water temperature
Big Walnut Creek, Sunbury, Ohio · River
The current water temperature at Big Walnut Creek is 14.8 °C (as of November 6, 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 523 data points since September 7, 2026.
Lowest recorded value: 10.2 °C on October 19, 2026 · highest value: 25.8 °C on September 9, 2026.
In November, temperatures have ranged between 12.2 °C and 15.9 °C.
The current value is 0.5 °C above the November average of this series.
Nearby waters
Frequently asked questions
Can you swim at Big Walnut Creek right now?
The current water temperature is 14.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Big Walnut Creek?
Currently 14.8 °C (updated continuously).
How warm is at Big Walnut Creek in November?
In November, the water temperature recently averaged 14.3 °C.
When is the water warmest at Big Walnut Creek?
Across the measurement record, September is on average the warmest month (20.0 °C).
