Tygart Valley River at Tygart Dam near Grafton, West Virginia water temperature
Tygart Valley River at Tygart Dam near Grafton, West Virginia · River
The current water temperature at Tygart Valley River at Tygart Dam near Grafton is 22.6 °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 119 data points since August 26, 2026.
Lowest recorded value: 21.7 °C on August 29, 2026 · highest value: 23.4 °C on September 2, 2026.
In September, temperatures have ranged between 21.9 °C and 23.4 °C.
Nearby waters
Frequently asked questions
Can you swim at Tygart Valley River at Tygart Dam near Grafton right now?
The current water temperature is 22.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Tygart Valley River at Tygart Dam near Grafton?
Currently 22.6 °C (updated continuously).
How warm is at Tygart Valley River at Tygart Dam near Grafton in September?
In September, the water temperature recently averaged 22.6 °C.
