Long Branch at Olley Lane near Fairfax, Virginia water temperature
Long Branch at Olley Lane near Fairfax, Virginia · River
The current water temperature at Long Branch at Olley Lane near Fairfax is 23.3 °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 111 data points since August 26, 2026.
Lowest recorded value: 22.1 °C on September 8, 2026 · highest value: 25.5 °C on September 1, 2026.
In September, temperatures have ranged between 22.1 °C and 25.5 °C.
The current value is 0.4 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Long Branch at Olley Lane near Fairfax right now?
The current water temperature is 23.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Long Branch at Olley Lane near Fairfax?
Currently 23.3 °C (updated continuously).
How warm is at Long Branch at Olley Lane near Fairfax in September?
In September, the water temperature recently averaged 23.7 °C.
