John Day River water temperature
John Day River, John Day, Oregon · River
The current water temperature at John Day River is 14.4 °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 135 data points since July 23, 2026.
Lowest recorded value: 10.9 °C on September 4, 2026 · highest value: 22.8 °C on July 23, 2026.
In September, temperatures have ranged between 10.9 °C and 20.5 °C.
The current value is 0.8 °C below the September average of this series.
Nearby waters
More measuring points: John Day River
Frequently asked questions
Can you swim at John Day River right now?
The current water temperature is 14.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at John Day River?
Currently 14.4 °C (updated continuously).
How warm is at John Day River in September?
In September, the water temperature recently averaged 15.2 °C.
When is the water warmest at John Day River?
Across the measurement record, July is on average the warmest month (21.5 °C).
