Yellowstone River near Sidney, Montana · River
The current water temperature at Yellowstone River near Sidney is 25.4 °C (as of July 19, 2026, source: USGS).
Can you swim at Yellowstone River near Sidney right now?
The current water temperature is 25.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Yellowstone River near Sidney?
Currently 25.4 °C (updated continuously).