Cedar River, Diversion near Landsburg, Washington · River
The current water temperature at Cedar River is 11.3 °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 333 data points since July 23, 2026.
Lowest recorded value: 10.5 °C on September 6, 2026 · highest value: 15.9 °C on July 25, 2026.
In September, temperatures have ranged between 10.5 °C and 13.7 °C.
The current value is 0.5 °C below the September average of this series.
Can you swim at Cedar River right now?
The current water temperature is 11.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Cedar River?
Currently 11.3 °C (updated continuously).
How warm is at Cedar River in September?
In September, the water temperature recently averaged 11.8 °C.
When is the water warmest at Cedar River?
Across the measurement record, July is on average the warmest month (13.3 °C).