The current water temperature at Lost River is 15.6 °C (as of October 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.
15.6 °C
Measured: October 1, 2026 · continuously updated
💧 Water 15.6° · ☀️ Air 17.0° · high today 19.0°
Temperature trend of recent weeks
Measurement series & statistics
This measurement series includes 48 data points since August 16, 2026.
Lowest recorded value: 14.2 °C on September 4, 2026 · highest value: 21.8 °C on August 20, 2026.
Can you swim at Lost River right now? The current water temperature is 15.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Lost River? Currently 15.6 °C (updated continuously).