Gunpowder Falls, Parkton, Maryland · River
The current water temperature at Gunpowder Falls is 18.4 °C (as of September 21, 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.
This measurement series includes 154 data points since July 23, 2026.
Lowest recorded value: 13.1 °C on July 25, 2026 · highest value: 18.7 °C on September 7, 2026.
In September, temperatures have ranged between 16.8 °C and 18.7 °C.
The current value is 0.8 °C above the September average of this series.
Can you swim at Gunpowder Falls right now?
The current water temperature is 18.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Gunpowder Falls?
Currently 18.4 °C (updated continuously).
How warm is at Gunpowder Falls in September?
In September, the water temperature recently averaged 17.6 °C.
When is the water warmest at Gunpowder Falls?
Across the measurement record, September is on average the warmest month (17.6 °C).