E. Branch Penobscot River below Grand Lake Matagamon water temperature

E. Branch Penobscot River below Grand Lake Matagamon · River

The current water temperature at E. Branch Penobscot River below Grand Lake Matagamon is 20.4 °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.

20.4 °C

Measured: September 1, 2026 · continuously updated

💧 Water 20.4° · ☀️ Air 11.3° · high today 22.4°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 486 data points since July 3, 2026.

Lowest recorded value: 18.8 °C on July 22, 2026 · highest value: 25.4 °C on July 9, 2026.

In September, temperatures have ranged between 20.4 °C and 20.6 °C.

Nearby waters

Meduxnekeag River at Lowery Rd. near Houlton, Maine · 76.4 km away20.0 °C Allagash River near Allagash, Maine · 106.3 km away18.6 °C West Grand Lake at Grand Lake Stream, Maine · 132.2 km away21.7 °C Lewy Lake at Princeton, Maine · 138.4 km away22.3 °C

Frequently asked questions

Can you swim at E. Branch Penobscot River below Grand Lake Matagamon right now?
The current water temperature is 20.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at E. Branch Penobscot River below Grand Lake Matagamon?
Currently 20.4 °C (updated continuously).

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