Gallatin River, Deer Creek, near Big Sky, Montana · River
The current water temperature at Gallatin River is 5.8 °C (as of November 2, 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 493 data points since September 7, 2026.
Lowest recorded value: 2.6 °C on October 29, 2026 · highest value: 14.2 °C on September 10, 2026.
In November, temperatures have ranged between 5.8 °C and 7.6 °C.
The current value is 1.1 °C below the November average of this series.
Can you swim at Gallatin River right now?
The current water temperature is 5.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Gallatin River?
Currently 5.8 °C (updated continuously).
How warm is at Gallatin River in November?
In November, the water temperature recently averaged 6.9 °C.
When is the water warmest at Gallatin River?
Across the measurement record, September is on average the warmest month (11.0 °C).