Tongue River water temperature
Tongue River, Tongue River Dam near Decker, Montana · River
The current water temperature at Tongue River is 9.3 °C (as of November 6, 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 487 data points since September 7, 2026.
Lowest recorded value: 9.2 °C on November 4, 2026 · highest value: 22.9 °C on September 8, 2026.
In November, temperatures have ranged between 9.2 °C and 11.5 °C.
The current value is 0.9 °C below the November average of this series.
Nearby waters
More measuring points: Tongue River
Frequently asked questions
Can you swim at Tongue River right now?
The current water temperature is 9.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Tongue River?
Currently 9.3 °C (updated continuously).
How warm is at Tongue River in November?
In November, the water temperature recently averaged 10.2 °C.
When is the water warmest at Tongue River?
Across the measurement record, September is on average the warmest month (18.8 °C).
