Middle Fork Flathead River water temperature
Middle Fork Flathead River, West Glacier, Montana · River
The current water temperature at Middle Fork Flathead River is 10.9 °C (as of September 20, 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.
Measurement series & statistics
This measurement series includes 74 data points since September 2, 2026.
Lowest recorded value: 10.1 °C on September 14, 2026 · highest value: 14.7 °C on September 3, 2026.
In September, temperatures have ranged between 10.1 °C and 14.7 °C.
The current value is 1.1 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Middle Fork Flathead River right now?
The current water temperature is 10.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Middle Fork Flathead River?
Currently 10.9 °C (updated continuously).
How warm is at Middle Fork Flathead River in September?
In September, the water temperature recently averaged 12.0 °C.
