Madison River near West Yellowstone, Montana · River
The current water temperature at Madison River near West Yellowstone is 19.7 °C (as of August 31, 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 282 data points since July 3, 2026.
Lowest recorded value: 12.8 °C on August 31, 2026 · highest value: 27.7 °C on July 25, 2026.
Can you swim at Madison River near West Yellowstone right now?
The current water temperature is 19.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Madison River near West Yellowstone?
Currently 19.7 °C (updated continuously).