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LakeQuality

Sauk River

Washington. A state-stocked trout water. Running 1,440 cfs as of Aug 1, 2026, 6:30 PM UTC.

Latest Reading

1,440
cubic feet / second
60.8°F
water temperature (16°C)
3
USGS gauges

Flow measured Aug 1, 2026, 6:30 PM UTC at gauge 12189500. Temperature measured Aug 1, 2026, 6:30 PM UTC at gauge 12189500. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

Water temperature and trout

Sauk River read 60.8°F as of Aug 1, 2026, 6:30 PM UTC. Trout come under thermal stress above roughly 68°F, and mortality after catch-and-release rises sharply in warm water. Montana FWP restricts angling when max daily water temperature reaches 73F for 3 consecutive days.

This reading sat below the stress threshold. Temperatures swing through the day and peak in late afternoon, so a morning reading can understate the daily maximum.

State Trout Classification

ClassificationState-stocked trout water

Source: .

USGS Gauges on Sauk River

GaugeStationWater temp?
12186000SAUK RIVER AB WHITE CHUCK RIVER NR DARRINGTON, WAYes
12187500SAUK RIVER AT DARRINGTON, WAYes
12189500SAUK RIVER NEAR SAUK, WAYes

Conditions: USGS NWIS (public domain).