Nooksack River at Ferndale, Washington water temperature
Nooksack River at Ferndale, Washington · River
The current water temperature at Nooksack River at Ferndale is 15.2 °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 264 data points since July 22, 2026.
Lowest recorded value: 13.7 °C on September 4, 2026 · highest value: 20.1 °C on July 22, 2026.
In September, temperatures have ranged between 13.7 °C and 17.4 °C.
The current value is 0.5 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Nooksack River at Ferndale right now?
The current water temperature is 15.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Nooksack River at Ferndale?
Currently 15.2 °C (updated continuously).
How warm is at Nooksack River at Ferndale in September?
In September, the water temperature recently averaged 15.7 °C.
When is the water warmest at Nooksack River at Ferndale?
Across the measurement record, July is on average the warmest month (17.7 °C).
