North Fork Tolt River, Carnation, Washington · River
The current water temperature at North Fork Tolt River is 10.7 °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.
This measurement series includes 259 data points since July 23, 2026.
Lowest recorded value: 9.6 °C on September 6, 2026 · highest value: 14.8 °C on July 25, 2026.
In September, temperatures have ranged between 9.6 °C and 12.1 °C.
The current value is 0.1 °C below the September average of this series.
Can you swim at North Fork Tolt River right now?
The current water temperature is 10.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at North Fork Tolt River?
Currently 10.7 °C (updated continuously).
How warm is at North Fork Tolt River in September?
In September, the water temperature recently averaged 10.8 °C.
When is the water warmest at North Fork Tolt River?
Across the measurement record, July is on average the warmest month (12.3 °C).