Big Horn Bite Buzzing with Walleye, Bass, and Trout

Good morning, anglers—Artificial Lure here with today’s fishing report for Big Horn, Montana and surrounding waters, Friday, September 19, 2025. Sunrise hit the Big Horn Canyon at 6:43 AM and we’ll see sunset around 7:10 PM tonight. Weather’s starting off cool and crisp—early fall in the air. Look for partly cloudy skies and a high near 72°F. Winds will stay gentle at 3-7 mph, so it’s prime time for a morning float or afternoon bank sit. Big Horn Lake and the river have been lively. Water conditions are moderate, flows steady, and clarity is decent after a few calm days. Tidal influence isn’t a factor here—Big Horn is all reservoir and river, no coastal tide to fuss over. Expect the bite to really pick up after sunrise and taper off mid-afternoon. Recent catches show the transition to fall is on. Walleye numbers have climbed, with most folks reporting decent action along the main lake points. Sizes are respectable—fat 16-20 inchers common. Don’t overlook the smallmouth bass; the lower canyon has seen solid numbers, especially below Ok-A-Beh marina. Anglers throwing crankbaits, tubes, and nightcrawlers have found fish hugging rocky outcrops. Catfish continue their steady march, with a few channel cats up over 8 pounds pulled near the river backwaters. While trout are winding down after the summer frenzy, fly fishers are still plucking healthy rainbows and a few browns—best early or late, especially with attractor nymphs and olive streamers through cooler slots. Bait: Nightcrawlers and leeches remain the “Montana gold” for walleye. For bass, soft plastic craws and shad-patterned swimbaits are hot. Catfish are biting best on cut bait and chicken liver as usual. Best lures right now are: - Shad Rap and Firetiger crankbaits for walleye on drop-offs and gravel bars - Black/blue or natural tubes for smallmouth around boulders - Chartreuse spinnerbaits for late-day bass strikes - Size 12 olive woolly buggers and prince nymphs for trout if you’re in fly mode Hot Spots to hit: - **Devil’s Canyon launch area**: Good structure for both smallmouth and walleye, with an easy put-in and lots of shoreline options. - **Ok-A-Beh Marina east shoreline**: Solid reports of walleye and bass, especially in the afternoon as sun angles down. - For river action, take the walk-in down to Bighorn River below the dam—flows are fishable and trout are still active. Wildlife is busy—just yesterday, a local rancher mentioned to Cowboy State Daily seeing a young grizzly foraging near the river. Be bear aware, especially with all the fall activity. If you’re hitting remote banks, pack your spray and pay attention to what’s moving in the willows. Angler tips: - Early fall weather can fool you—layer up, but keep that sunblock handy. - Practice catch and release where possible; Big Horn’s fishery is a true resource. - Watch for floating debris after recent wind—hazards pop up after every storm. Thanks for tuning in to today’s Big Horn Montana fishing report. Don’t forget to This content was created in partnership and with the help of Artificial Intelligence AI.