Kootenai River at Leonia, Idaho water temperature

Kootenai River at Leonia, Idaho · River

The current water temperature at Kootenai River at Leonia is 13.8 °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.

13.8 °C

Measured: September 1, 2026 · continuously updated

💧 Water 13.8° · ☀️ Air 21.8° · high today 26.5°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 496 data points since July 3, 2026.

Lowest recorded value: 12.3 °C on August 31, 2026 · highest value: 16.0 °C on July 19, 2026.

Nearby waters

Kootenai River at Bonners Ferry, Idaho · 21.3 km away14.4 °C Kootenai River at Porthill, Idaho · 53.9 km away15.7 °C Boundary Reservoir at Forebay near Metaline Falls · 103.8 km away22.4 °C Pend Oreille River at International Boundary · 104.5 km away22.1 °C Flathead River at Columbia Falls, Montana · 140.3 km away15.4 °C

Frequently asked questions

Can you swim at Kootenai River at Leonia right now?
The current water temperature is 13.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Kootenai River at Leonia?
Currently 13.8 °C (updated continuously).

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