Lost River water temperature

Lost River, Anderson Rose Dvrsn Dam at Malone, Oregon · River

The current water temperature at Lost River is 17.3 °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.

17.3 °C

Measured: September 22, 2026 · continuously updated

💧 Water 17.3° · ☀️ Air 24.0° · high today 25.3°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 31 data points since July 25, 2026.

Lowest recorded value: 17.3 °C on September 22, 2026 · highest value: 24.3 °C on July 31, 2026.

Nearby waters

Lost River at Stateline Road, near Hatfield, California · 3.5 km away15.2 °C Lost River at Wilson Dam, at Henley, Oregon · 17.3 km away19.0 °C Lost River at Olene, Oregon · 18.7 km away16.6 °C Klamath Straits Drain, F-ff Pumps, Worden, Oregon · 24.4 km away15.0 °C Klamath Straits Drain near Highway 97, Oregon · 25.1 km away16.5 °C

Frequently asked questions

Can you swim at Lost River right now?
The current water temperature is 17.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Lost River?
Currently 17.3 °C (updated continuously).

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