Arkansas River below John Martin Reservoir, Colorado · River
The current water temperature at Arkansas River below John Martin Reservoir is 24.0 °C (as of July 18, 2026, source: USGS).
Can you swim at Arkansas River below John Martin Reservoir right now?
The current water temperature is 24.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Arkansas River below John Martin Reservoir?
Currently 24.0 °C (updated continuously).
How warm is at Arkansas River below John Martin Reservoir in July?
In July, the water temperature recently averaged 24.5 °C.