Missouri River walleyes in summer mode; Black Hills streams holding trout

What's biting

What's next

With the full moon at peak June 29, the next 48–72 hours deliver some of the best low-light windows of the month. Walleye on Lake Oahe and Lake Sharpe typically abandon shallow structure once surface temps climb midday, scattering to rocky contour breaks, submerged river channels, and riprap at 15–30 feet. Jason Mitchell Outdoors (YT) confirms this summer rhythm, featuring spinner rigs trolled along depth transitions and light jigs cast upwind into current edges as the go-to presentations. Plan your walleye sessions for the two hours around sunrise and the final hour before dark — those brackets are consistently the highest-percentage windows through July.

Catfish activity should build through the weekend. Field & Stream's summer catfish coverage notes that fish feed aggressively after dark, and the full moon extends that active feeding window well into early morning. Bottom rigs fished in main-channel seams below wing dams and on outside bends are the standard Missouri River approach — and this weekend's overnight tides of darkness and moonlight are about as good as it gets for the bite.

In the Black Hills, smaller streams and creeks will warm into the mid-afternoon on late-June days, compressing the trout window to early morning before 10 a.m. and again in the evening once shadows lengthen. MidCurrent's recent caddis and nymph tying content points to a dry-dropper setup as the most versatile rig — a buoyant elk-hair caddis up top with a bead-head nymph beneath covers both surface-looking and subsurface fish. Keep presentations in shaded seams and undercut banks during the midday heat.

Fishing the Midwest identifies weedlines as the summer key across the upper Midwest right now. As emergent vegetation continues to fill out through early July on the Missouri River reservoirs, expect northern pike and largemouth bass to stack on the outer weedline edge during morning and evening — topwater early, then transition to a weedless soft bait once the sun hits the water. Weekend anglers should prioritize full-moon early mornings for walleye, build an overnight catfish session into Saturday or Sunday, and keep Black Hills trout outings front-loaded to first light.

Context

Late June sits at the heart of the South Dakota summer walleye window. On Lake Oahe — the largest of the Missouri River impoundments and one of the most consistently productive walleye fisheries in the northern Great Plains — fish that staged on shallow spawning flats in May have typically completed their post-spawn recovery by mid-June and redistributed to main-lake structure. Jason Mitchell Outdoors (YT) is currently covering summer walleye on Lake Sakakawea, directly upstream on the Missouri River system in North Dakota; that reservoir shares the same geology, forage base, and seasonal progression as Oahe and Sharpe, making the spinner-and-jig summer transition a reliable benchmark for what is likely happening downstream right now.

The 0 cfs reading on USGS gauge 06440200 is consistent with typical late-June hydrology in South Dakota, where smaller Missouri River tributaries regularly run at trace or zero flow by midsummer. This reading does not reflect pool levels on the main-stem reservoirs, which are managed by the Army Corps of Engineers and remain navigable regardless of tributary runoff. Anglers planning reservoir access are not affected; those fishing smaller feeder streams should check current conditions locally.

In the Black Hills, late June historically marks the end of spring runoff and the beginning of stable low-water summer conditions on Rapid Creek and its feeders. Stream trout fishing typically improves as flows stabilize, with brown and rainbow trout returning to predictable feeding lies along current seams and undercut banks. MidCurrent's ongoing nymph and caddis content aligns with what is traditionally effective on Black Hills streams at this stage of the season.

No source in this week's intel feeds offered a direct comparison of this year's conditions to historical norms for South Dakota specifically, so an early, late, or on-schedule assessment is not possible from available data. Conditions appear consistent with what is typical for this date across the region.