Lost River water temperature

Lost River, Wilson Dam, at Henley, Oregon · River

The current water temperature at Lost River is 17.7 °C (as of September 22, 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.

17.7 °C

Measured: September 22, 2026 · continuously updated

💧 Water 17.7° · ☀️ Air 17.2° · high today 23.8°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 39 data points since July 25, 2026.

Lowest recorded value: 17.7 °C on September 22, 2026 · highest value: 22.5 °C on August 9, 2026.

Nearby waters

Lost River at Olene, Oregon · 5.6 km away16.6 °C Lost River Diversion Channel near Klamath River, Oregon · 10.1 km away15.7 °C Link River below Keno Canal, near Klamath Falls, Oregon · 12.9 km away16.4 °C Link River, Klamath Falls, Oregon · 13.5 km away18.8 °C Klamath River at Miller Island Boat Ramp-bottom · 14.6 km away15.7 °C

More measuring points: Lost River

Anderson Rose Dvrsn Dam at Malone, Oregon17.3 °C

Frequently asked questions

Can you swim at Lost River right now?
The current water temperature is 17.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Lost River?
Currently 17.7 °C (updated continuously).

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