St. Croix River at St. Croix Falls, Wisconsin · River
The current water temperature at St. Croix River at St. Croix Falls is 24.1 °C (as of September 1, 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 490 data points since July 3, 2026.
Lowest recorded value: 21.5 °C on August 27, 2026 · highest value: 30.6 °C on July 15, 2026.
Can you swim at St. Croix River at St. Croix Falls right now?
The current water temperature is 24.1 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at St. Croix River at St. Croix Falls?
Currently 24.1 °C (updated continuously).