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Cowlitz River (WA)

Lake Pacific tributary · Gauge: Cowlitz River at Castle Rock, WA

Current Conditions
—
Water Temp
5,610
Flow (cfs) · steady
34.26ft
Gage Height

Reading: 6/5/2026, 9:30:00 PM

Run status

Chinook Salmon
Confidence: 32%
NOT YET
Why this status?

Phase: before. Water n/a°F (ideal 50-60), flow 5610 cfs (ideal 3000-8000). 0 reports in last 24h (weighted 7d: 0.00, trust-adjusted). Window/Temp/Flow/Reports scores: 0.00/0.50/1.00/0.17 → total 0.32.

Coho Salmon
Confidence: 32%
NOT YET
Why this status?

Phase: before. Water n/a°F (ideal 50-58), flow 5610 cfs (ideal 3000-8000). 0 reports in last 24h (weighted 7d: 0.00, trust-adjusted). Window/Temp/Flow/Reports scores: 0.00/0.50/1.00/0.17 → total 0.32.

Steelhead
Confidence: 32%
DONE
Why this status?

Phase: after. Water n/a°F (ideal 38-50), flow 5610 cfs (ideal 2500-10000). 0 reports in last 24h (weighted 7d: 0.00, trust-adjusted). Window/Temp/Flow/Reports scores: 0.00/0.50/1.00/0.17 → total 0.32.

Recent reports

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Typical run windows

Chinook Salmon 08-01 → peak 09-15 → 10-31
Ideal: 50-60°F · 3,000-8,000 cfs

Cowlitz Hatchery — fall chinook + spring chinook.

Coho Salmon 09-15 → peak 10-20 → 11-30
Ideal: 50-58°F · 3,000-8,000 cfs

Strong hatchery coho run.

Steelhead 11-15 → peak 02-15 → 05-15
Ideal: 38-50°F · 2,500-10,000 cfs

Winter + summer steelhead — separated runs.

Status is computed from real-time USGS gauge data, historical run windows, DNR reports, and crowdsourced angler reports. Always confirm conditions with the latest DNR rules before fishing.