L Arkansas River, HWY 50 near Halstead, Kansas · River
The current water temperature at L Arkansas River is 20.4 °C (as of October 14, 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 84 data points since October 5, 2026.
Lowest recorded value: 17.8 °C on October 5, 2026 · highest value: 24.6 °C on October 13, 2026.
In October, temperatures have ranged between 17.8 °C and 24.6 °C.
The current value is 0.2 °C above the October average of this series.
Can you swim at L Arkansas River right now?
The current water temperature is 20.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at L Arkansas River?
Currently 20.4 °C (updated continuously).
How warm is at L Arkansas River in October?
In October, the water temperature recently averaged 20.2 °C.