Bighorn Bliss: Ideal Fishing Conditions and Hefty Trout on Montana's Premier Tailwater

Good morning anglers! Here’s your Big Horn, Montana fishing report for April 2, 2025. The weather today is looking favorable for fishing, with partly cloudy skies and temperatures expected to hover around the mid-40s. Sunrise was at 7:45 AM, and sunset will be at 7:28 PM, giving you plenty of daylight for a full day on the water. Conditions are a bit breezy, with light southwest winds, so dress in layers and pack your waders for comfort on the river. River flows on the Bighorn are steady at approximately 2,300 cubic feet per second (cfs), an ideal level for spring fishing. The water clarity is excellent, and river temperatures are sitting at a cool 42 degrees Fahrenheit. This has created near-perfect conditions for both nymphing and streamer fishing. In terms of fish activity, anglers have been reporting excellent catches of rainbow trout in the 16-20 inch range, along with some impressive brown trout mixed in. A lucky angler recently landed a stunning 26-inch brown trout! The fish are primarily holding in deep, slow-moving water, making subsurface presentations the most effective approach. For nymph fishing, try using scuds, sowbugs, and midges. Effective patterns include orange scuds (size 14-16), tailwater sowbugs (size 16-18), and zebra midges (size 18-20). San Juan worms in various colors are also producing consistent results. If streamers are your game, opt for olive woolly buggers, white zonkers, and sculpin patterns. Be sure to fish these streamers slow and deep for the best success. Hot spots to focus on include the stretch between Afterbay Dam and the 3-Mile Access. This section has been on fire lately, with deep runs and seams holding plenty of fish. If you’re looking for a quieter spot, head further downstream to the 13-Mile Access area; it’s worth the trek for the stellar fishing there. Bait anglers have also been finding success with nightcrawlers and salmon eggs, but always double-check regulations before using bait in certain areas. For spin fishing, Panther Martin spinners in gold and brown or Rapalas in rainbow and silver colors have been highly productive. Although tides are not a factor on the Bighorn River, keep an eye on water releases from Yellowtail Dam, as they can influence fishing conditions. Currently, flows are stable, which is working in favor of all anglers. That’s your Big Horn report for today! Tight lines, and don’t forget to handle those fish with care before releasing them back into the water. Enjoy the spring fishing and good luck out there! This content was created in partnership and with the help of Artificial Intelligence AI.