Willamette River below Falls, at Oregon City, Oregon water temperature
Willamette River below Falls, at Oregon City, Oregon · River
The current water temperature at Willamette River below Falls is 17.1 °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.
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Measurement series & statistics
This measurement series includes 215 data points since July 22, 2026.
Lowest recorded value: 16.8 °C on September 19, 2026 · highest value: 24.2 °C on July 25, 2026.
In September, temperatures have ranged between 16.8 °C and 22.1 °C.
The current value is 1.9 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Willamette River below Falls right now?
The current water temperature is 17.1 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Willamette River below Falls?
Currently 17.1 °C (updated continuously).
How warm is at Willamette River below Falls in September?
In September, the water temperature recently averaged 19.0 °C.
When is the water warmest at Willamette River below Falls?
Across the measurement record, July is on average the warmest month (23.8 °C).
