Nehalem River near Foss, Oregon water temperature
Nehalem River near Foss, Oregon · River
The current water temperature at Nehalem River near Foss is 17.3 °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.
Measurement series & statistics
This measurement series includes 158 data points since July 22, 2026.
Lowest recorded value: 15.5 °C on September 4, 2026 · highest value: 22.3 °C on July 22, 2026.
In September, temperatures have ranged between 15.5 °C and 20.4 °C.
The current value is 0.1 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Nehalem River near Foss right now?
The current water temperature is 17.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Nehalem River near Foss?
Currently 17.3 °C (updated continuously).
How warm is at Nehalem River near Foss in September?
In September, the water temperature recently averaged 17.4 °C.
When is the water warmest at Nehalem River near Foss?
Across the measurement record, July is on average the warmest month (21.0 °C).
