Sf Boise River water temperature
Sf Boise River, Neal Bridge near Arrowrock Dam, Idaho · River
The current water temperature at Sf Boise River is 14.6 °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.
Measurement series & statistics
This measurement series includes 422 data points since July 23, 2026.
Lowest recorded value: 9.1 °C on July 27, 2026 · highest value: 16.4 °C on August 22, 2026.
In September, temperatures have ranged between 11.0 °C and 15.3 °C.
The current value is 1.4 °C above the September average of this series.
Nearby waters
More measuring points: Sf Boise River
Frequently asked questions
Can you swim at Sf Boise River right now?
The current water temperature is 14.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Sf Boise River?
Currently 14.6 °C (updated continuously).
How warm is at Sf Boise River in September?
In September, the water temperature recently averaged 13.2 °C.
When is the water warmest at Sf Boise River?
Across the measurement record, September is on average the warmest month (13.2 °C).
