What is the current flow on South Fork Boise River?

South Fork Boise River was running 1,570 cubic feet per second as of Aug 1, 2026, 6:15 PM UTC, measured at USGS gauge 13190500. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

What is the water temperature on South Fork Boise River?

50.5°F (10.3°C) as of Aug 1, 2026, 5:45 PM UTC, at USGS gauge 13192200. South Fork Boise River carries no state trout classification, so the trout-stress thresholds do not apply to it — this is a water temperature measurement, not a fishery judgement.

South Fork Boise River

Idaho. Streamflow and water-temperature readings from USGS gauges. Running 1,570 cfs as of Aug 1, 2026, 6:15 PM UTC.

Latest Reading

1,570

cubic feet / second

50.5°F

water temperature (10.3°C)

USGS gauges

Flow measured Aug 1, 2026, 6:15 PM UTC at gauge 13190500. Temperature measured Aug 1, 2026, 5:45 PM UTC at gauge 13192200. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on South Fork Boise River

Gauge	Station	Water temp?
13186000	SF BOISE RIVER NR FEATHERVILLE ID	—
13190500	SF BOISE RIVER AT ANDERSON RANCH DAM ID	Yes
13192200	SF BOISE RIVER AT NEAL BRIDGE NR ARROWROCK DAM ID	Yes

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Conditions: USGS NWIS (public domain).