Lake Hiawatha Beach · River
The current water temperature at Lake Hiawatha Beach is 25.4 °C (as of September 2, 2026, source: USGS · Proxy).
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.
Can you swim at Lake Hiawatha Beach 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 Lake Hiawatha Beach?
Currently 25.4 °C (updated continuously).