Columbia smallmouth peak as spring Chinook make their final push

What's biting

What's next

The 57°F reading at USGS gauge 14113000 puts area rivers in a late-spring sweet spot. As daytime temperatures build through the first weekend of June, expect surface readings to nudge upward on shallower reaches — the 58–62°F range is traditionally when mid-Columbia smallmouth bass fishing transitions from post-spawn recovery into full feeding aggression.

**Smallmouth bass** are the strongest near-term bet. Tactical Bassin (blog) notes that post-spawn fish in conditions like these respond well to chatterbaits and swimbaits worked along current seams, with dropshot and neko rigs handling the finesse slot when the reaction bite slows on offshore structure. On the Columbia, expect fish concentrated on rocky points and rip-rap banks after vacating spawning areas — isolated offshore structure is especially productive right now as males shift from nest-guarding to active pursuit.

**Spring Chinook salmon** windows are closing fast. Historically, harvestable runs on most Columbia reaches thin significantly by the first week of June as fish push through lower holding water and begin to deteriorate in quality. Anglers holding remaining tags should focus effort in the next several days, working deeper holding pools and tailouts during cooler early morning hours. Check Washington state regulations carefully — openings vary by river reach and can be adjusted mid-season. WA WDFW Fishing Reports is the authoritative source for real-time changes.

**Summer steelhead** are the next headline act on the Columbia calendar, with meaningful numbers typically entering major tributaries by mid-June. Right now the bite is exploratory — those willing to swing flies or drift through deeper transition slots may pick up an occasional bright fish, but consistent action is still a few weeks out.

**Puget Sound-area rivers** are settling out of peak snowmelt, with flows likely dropping progressively through June as snowpack tapers. As clarity improves, resident cutthroat and rainbow trout respond well to emerging caddis hatches typical for late May through early June. Elk-hair caddis and small nymphs worked through pocket water and tailouts are historically productive in this window.

**Timing the weekend:** The full moon on May 31 drives strong nocturnal feeding pressure, making the first 90 minutes of daylight the prime window across all species. Bass anglers should target low-light transitions for topwater and swimbait action, then drop to finesse rigs as the sun climbs. Midday fishing under clear, post-full-moon skies typically slows on most Columbia freshwater species.

Context

Late May marks a well-worn transition on Washington's freshwater calendar. Spring Chinook — the signature early-season event on the Columbia and many Puget Sound river systems — typically peak through late April and into mid-May, then taper sharply as fish push through lower reaches and begin losing prime holding quality. A 57°F reading on May 30 is consistent with typical late-spring conditions for Columbia tributaries, which generally climb out of the high 40s through April into the mid-to-upper 50s by month's end as air temperatures rise and snowmelt flux decreases.

The 1,130 cfs flow at USGS gauge 14113000 sits in a moderate range for late May. Without prior-year gauge comparisons in this week's data, it is not possible to characterize whether 2026 runoff is running high, low, or on par with historical averages. No comparative signal from agency, charter, or shop sources specific to these drainages emerged this period — WA Sea Grant's current feeds focus on coastal resilience programming and graduate fellowships, and WA WDFW Fishing Reports described the creel survey program without publishing current catch or stocking data.

What late May historically signals on the Columbia: smallmouth bass fishing typically approaches its seasonal peak between late May and late July, with 55–65°F water representing the heart of feeding aggression. The mid-Columbia smallmouth fishery is widely regarded as among the strongest freshwater bass destinations in the Pacific Northwest, and this temperature window is the one to be on the water for.

Summer steelhead entry — a roughly mid-June through September event on most Columbia reaches — remains a few weeks from peak significance. Field & Stream's recently published cutthroat trout guide notes that these fish are native to Pacific Ocean tributaries and Rocky Mountain drainages, making Washington's Cascade-fed Puget Sound river systems prime habitat; late May through June, as flows settle and clarity returns, is historically a productive window for coastal cutthroat in these systems.