Grand Lake Outlet water temperature

Grand Lake Outlet, Chipmunk Ln at Grand Lake, Colorado · River

The current water temperature at Grand Lake Outlet is 11.0 °C (as of October 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.

11.0 °C

Measured: October 22, 2026 · continuously updated

💧 Water 11.0° · ☀️ Air -1.6° · high today 4.4°

Temperature trend of recent weeks

Grand Lake Outlet — Photo: inkknife_2000 (7.5 million views +) · CC BY-SA 2.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 281 data points since September 7, 2026.

Lowest recorded value: 10.0 °C on October 18, 2026 · highest value: 17.8 °C on September 8, 2026.

Nearby waters

Colorado River, Baker Gulch near Grand Lake, Colorado · 9.2 km away7.4 °C Colorado River, Granby, Colorado · 15.2 km away12.5 °C Willow Creek, Willow Creek Reservoir, Colorado · 16.3 km away10.6 °C Colorado River, Windy Gap, near Granby, Colorado · 21.4 km away11.6 °C Big Thompson, Moraine Park near Estes Park, Colorado · 24.0 km away2.1 °C

Frequently asked questions

Can you swim at Grand Lake Outlet right now?
The current water temperature is 11.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Grand Lake Outlet?
Currently 11.0 °C (updated continuously).

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