FishCondishMissouri River, MT Fishing Report & Live Conditions
Missouri River, MT fishing report
The Missouri River tailwater below Holter Dam is genuine trout water, with rainbow and brown trout being the primary draw year-round. Spring runoff can push flows and slightly color the water, but the dam regulation keeps this stretch more fishable than free-flowing rivers when conditions elsewhere deteriorate. Summer sees trout becoming selective and moving to deeper, cooler slots as water warms. Fall triggers aggressive brown trout feeding ahead of spawning, often the best dry-fly window of the year. While trout dominate, do not overlook the warmwater species that show up further downstream as the tailwater influence fades — smallmouth bass, walleye, and channel catfish all become legitimate targets.
Trout hold tight to current seams, undercut banks, and the softer water behind mid-channel boulders. Nymphing with sowbugs, midge larvae, and Pat's Rubber Legs produces consistently, especially when flows are higher. When surface temperatures drop into the low fifties and below, trout feed more aggressively and streamer fishing with woolly buggers or sculpin patterns can find larger browns. Watch your thermometer — water too warm in August pushes fish deep and midday fishing suffers. For smallmouth and walleye in transitional water, work slower outside bends with jigs and soft plastics near the bottom. Read the seams, match your depth to the season, and let the current do the work.
Missouri River, MT river flow
The closest active USGS gauge to Missouri River, MT is Missouri River bl Holter Dam nr Wolf Cr MT (site 06066500), about 6.1 miles away. It drains roughly 16,924 square miles. Flow is the single best predictor of where fish sit in moving water, so it is worth knowing what normal looks like before you read today's number.
In July, this gauge typically runs about 4,650 cfs.
| Month | Median flow |
|---|---|
| Jan | 4,790 cfs |
| Feb | 4,640 cfs |
| Mar | 4,600 cfs |
| Apr | 5,020 cfs |
| May | 5,310 cfs |
| Jun | 6,695 cfs |
| Jul | 4,650 cfs |
| Aug | 4,070 cfs |
| Sep | 4,050 cfs |
| Oct | 4,080 cfs |
| Nov | 4,440 cfs |
| Dec | 4,730 cfs |
Median flow from the USGS daily-statistics record. For the live flow, gage height, water temperature, and today's fishing score, open the Missouri River, MT dashboard.
What's biting near Missouri River, MT
The species most likely to be feeding the gold medal tailwater trout stretch below Holter Dam: largemouth and smallmouth bass, trout, walleye, chain pickerel, catfish, and panfish. FishCondish grades every hour of the day for Missouri River, MT and gives each species its own bite forecast, so you can see which window is worth fishing before you load the truck.
Missouri River, MT fishing FAQ
What fish can you catch at Missouri River, MT?
The species bite forecast for Missouri River, MT covers what's likely feeding there, including largemouth and smallmouth bass, trout, walleye, chain pickerel, catfish, and panfish — and updates with the live conditions.
What's the best time of day to fish Missouri River, MT?
Dawn and dusk are usually the most productive windows on the gold medal tailwater trout stretch below Holter Dam, particularly when the barometric pressure is steady or falling. FishCondish grades every hour of the day so you can pick the best one.
When is the best season to fish Missouri River, MT?
Spring and fall are typically strongest on the gold medal tailwater trout stretch below Holter Dam as water temperatures sit in the productive range, with summer fishing best early and late in the day. It varies year to year, so check the live conditions before you head out.
How do I know if it's a good day to fish Missouri River, MT?
FishCondish combines wind, water level, water temperature, pressure trend, and moon phase into a single 1–10 fishing score for Missouri River, MT, updated in real time — a quick go/no-go read before you make the trip.
Fishing tips for Missouri River, MT
New to these waters? Start with these beginner-friendly guides: