White Salmon River near Underwood, Washington water temperature
White Salmon River near Underwood, Washington · River
The current water temperature at White Salmon River near Underwood is 9.5 °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 126 data points since July 23, 2026.
Lowest recorded value: 8.3 °C on September 8, 2026 · highest value: 13.1 °C on July 24, 2026.
In September, temperatures have ranged between 8.3 °C and 11.4 °C.
The current value is 0.2 °C above the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at White Salmon River near Underwood right now?
The current water temperature is 9.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at White Salmon River near Underwood?
Currently 9.5 °C (updated continuously).
How warm is at White Salmon River near Underwood in September?
In September, the water temperature recently averaged 9.3 °C.
When is the water warmest at White Salmon River near Underwood?
Across the measurement record, July is on average the warmest month (10.5 °C).
