Columbia & Rogue Gauge Reads 62°F at 3,560 CFS — Chinook Window Is Open

What's Biting

What's Next

With water temperature already at 62°F on May 6, the Columbia and Rogue systems are positioned well heading into the weekend. Spring Chinook on the Columbia mainstem and its lower tributaries typically peak in the 55–65°F range; we're sitting squarely in that window, and if temperatures hold or nudge upward another degree or two over the next 48 hours, expect fish to push more aggressively into shallower holding lies during low-light periods.

Flows at 3,560 CFS reflect normal late-spring snowmelt contributions. Watch the USGS gauge daily — a mid-week rainfall event in the Cascades can bump flows 15–20% in 24 hours, temporarily clouding visibility and pushing fish off anchor points near the banks. If that happens, give it 24–36 hours before expecting the bite to re-establish.

On the Rogue, Hatch Magazine's current editorial coverage highlights caddis emergences as the defining early-season hatch pattern across western river systems right now. Afternoons between 2 PM and dusk are the prime window — look for surface activity in riffles and tailouts once air temps climb. A size 14–16 elk-hair caddis or soft-hackle swing through the seam lines should be productive. MidCurrent's tying coverage this week features a beaded purple nymph designed for low-light, overcast conditions — worth carrying as a dropper on overcast mornings when the dry-fly bite hasn't fired yet.

For the weekend: if sky conditions run typical for early May in southern Oregon — partly cloudy, temperatures in the mid-50s to low 60s — plan to be on the water at first light for Chinook and steelhead, and pivot to dry-fly presentations by early afternoon as the caddis come off. Evening tides on tidal Columbia reaches will concentrate baitfish and draw feeding activity toward structure. Check the local forecast Friday evening before committing to a launch time.

Context

Early May sits at the traditional peak of the spring Chinook run on the Columbia system, with fish entering the river from late March and concentrating in mainstem pools and tributary mouths through June. A water temperature of 62°F on May 6 is on the warm side of average for this date — most years the Columbia drainage climbs from the upper 50s into the low 60s during the second and third weeks of May, so this reading suggests the season is running slightly ahead of the historical median, possibly reflecting a dry spring with less cold snowmelt dilution than typical years.

On the Rogue, spring steelhead and Chinook coexist with resident rainbow and redband trout through May, and the river's reputation as one of the premier caddis-hatch destinations in the Pacific Northwest is well-earned by mid-spring. In most years, the Rogue's caddis peak follows closely behind the Deschutes by one to two weeks — if Hatch Magazine's current coverage signals the hatch is underway elsewhere in the West, the Rogue is likely entering or already in its prime caddis window.

No Oregon-specific angler intel sources appeared in this cycle's feeds, so a direct year-over-year comparison to reports from guides or shops on these rivers isn't possible here. The gauge data alone suggests conditions are favorable and modestly ahead of schedule — but readers planning a trip should cross-reference with current ODFW regulation updates and any local shop reports before finalizing plans, as spring run timing and retention rules on both rivers can shift on short notice.