Columbia River in summer transition as spring Chinook season winds down

What's Biting

What's Next

With 156,000 cfs pushing through the mainstem and water at 63°F, the Columbia is in transition mode heading into the back half of June. Flows at this level reflect continued spring snowmelt contribution from the upper basin. On the regulated Columbia, dam releases temper natural runoff spikes, so tracking Army Corps project-flow forecasts alongside the gauge reading will give a clearer picture of what to expect over the next 48 to 72 hours.

For spring Chinook, the coming week represents the late window for meaningful retention opportunities on most lower-river zones. Fish still in the system tend to be on the move rather than holding in traditional bank and back-eddy lies. Deeper holes and cooler-water confluences, where tributary inflow or dam tailraces offer thermal refuge, are worth prioritizing. Dawn and dusk bites hold up longest as midday surface temperatures push higher and fish become reluctant to hold in shallow current.

Summer Chinook typically begin showing in meaningful numbers at Bonneville Dam counts by late June and early July. If temperature pressure on late spring fish accelerates upstream movement, that transition could arrive a touch earlier this year. Watch in-season count updates and hatchery returns as the leading indicator for when to shift focus from spring to summer fish.

White sturgeon, targetable year-round under strict slot-size rules, tend to feed most actively during lower-light periods on strong tidal pushes in the lower river. At 63°F, water temperatures sit well within the comfort range for active feeding. Large natural bait presentations anchored on main-channel current seams are the standard approach. Verify current slot limits and daily retention rules with ODFW before heading out, as regulations can tighten mid-season without much advance notice.

The new moon on June 13 typically drives stronger tidal variation in the lower estuary, creating feeding windows during the first and last two hours of tidal movement. Midweek pressure tends to be lighter than weekend crowds, which may give anglers at popular Columbia access points better shots at less-pressured fish before the weekend surge arrives.

Context

Mid-June on the Columbia River has historically marked the transition between the spring Chinook season and the incoming summer Chinook run, and the current gauge data is consistent with that calendar window. A reading of 156,000 cfs in mid-June is elevated relative to late-summer norms. Flows at this gauge typically trend toward the 80,000 to 120,000 cfs range by July as snowmelt contribution wanes and irrigation draws ramp up across the Columbia Basin. This year's reading suggests spring runoff is still playing out, which carries a double-edged effect: higher flows push remaining Chinook through lower-river reaches faster, but they also maintain the turbid channel conditions that can help migrating fish move through with less visual predation pressure.

At 63°F, water temperature is on the warm side for late-returning spring Chinook but within the normal June range for this river. Thermal stress on Chinook typically becomes a management concern as temperatures push into the mid-to-upper 60s. The current reading leaves a reasonable buffer, though that margin narrows quickly as summer heat builds through late June and into July. Anglers should watch for ODFW in-season temperature advisories, which can trigger conservation closures on short notice.

No comparative angler catch-rate data for this specific run or region appears in this week's citable feeds. The IFish.net forum includes posts from Columbia River access points, including Chinook Landing and Meldrum Bar, but those posts are lost-item notices rather than catch reports and cannot serve as fishing-conditions testimony under this report's source standards.

Broadly, the 2026 western fishing season is showing drought stress on warm-water reservoir fisheries, per Wired 2 Fish, with fish kills affecting bass and catfish populations in Arizona and parts of the Southwest. Those impacts are concentrated on warm-water species in reservoir systems rather than Columbia River anadromous runs, and no direct comparison to Pacific Northwest salmon return strength is available from the current intel set. Anglers planning Columbia River trips should treat this report as a conditions snapshot and verify current run-strength data directly with ODFW before committing to a trip.