Pend Oreille River at International Boundary · River
The current water temperature at Pend Oreille River at International Boundary is 17.8 °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 223 data points since July 22, 2026.
Lowest recorded value: 14.4 °C on September 3, 2026 · highest value: 23.7 °C on July 28, 2026.
In September, temperatures have ranged between 14.4 °C and 22.5 °C.
The current value is 2.2 °C below the September average of this series.
Can you swim at Pend Oreille River at International Boundary right now?
The current water temperature is 17.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Pend Oreille River at International Boundary?
Currently 17.8 °C (updated continuously).
How warm is at Pend Oreille River at International Boundary in September?
In September, the water temperature recently averaged 20.0 °C.
When is the water warmest at Pend Oreille River at International Boundary?
Across the measurement record, July is on average the warmest month (23.4 °C).