North Santiam River near Marion Forks, Oregon water temperature
North Santiam River near Marion Forks, Oregon · River
The current water temperature at North Santiam River near Marion Forks is 7.9 °C (as of September 1, 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 89 data points since July 3, 2026.
Lowest recorded value: 6.4 °C on August 30, 2026 · highest value: 13.0 °C on July 8, 2026.
In September, temperatures have ranged between 7.9 °C and 10.2 °C.
The current value is 0.9 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at North Santiam River near Marion Forks right now?
The current water temperature is 7.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at North Santiam River near Marion Forks?
Currently 7.9 °C (updated continuously).
How warm is at North Santiam River near Marion Forks in September?
In September, the water temperature recently averaged 8.8 °C.
When is the water warmest at North Santiam River near Marion Forks?
Across the measurement record, July is on average the warmest month (9.8 °C).
