Sf Tolt River water temperature
Sf Tolt River, Regulating Basin near Carnation, Washington · River
The current water temperature at Sf Tolt River is 10.0 °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.
Measurement series & statistics
This measurement series includes 211 data points since July 23, 2026.
Lowest recorded value: 10.0 °C on September 21, 2026 · highest value: 15.2 °C on August 7, 2026.
In September, temperatures have ranged between 10.0 °C and 14.0 °C.
The current value is 2.3 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Sf Tolt River right now?
The current water temperature is 10.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Sf Tolt River?
Currently 10.0 °C (updated continuously).
How warm is at Sf Tolt River in September?
In September, the water temperature recently averaged 12.3 °C.
When is the water warmest at Sf Tolt River?
Across the measurement record, August is on average the warmest month (13.2 °C).
