Fishing Report, April 17

It has been pretty winter-like over the last few days with a decent amount of snow and some cold nights—classic Montana spring weather!

The forecast for the next six days looks excellent, however, with highs reaching 72°F and lows in the 30s. I expect our rivers and lakes to continue to fish well with this shift. Love this weather!

Fishing Report, April 17

Fishing Report, Whitefish

Flathead River: The “High & Clearing” Update

Status: Dropping & Clearing | Flow: 17,800 CFS | Temp: 43°F

The Flathead is finally starting to turn the corner. After the “Tax Day” bump, flows are dropping to 17,800 CFS and the water is beginning to clear up. The river is fishing well again as the trout move back into their typical spring holding water.

  • The Strategy: With the clarity returning, you can shift back to more traditional spring presentations. The fish are looking for a meal as they recover from the high water surge.

  • The Outlook: Today and tomorrow are looking prime. With the forecasted warmth heading into the weekend, expect the bug activity to spike and the river to stay in good shape before the next potential weather shift.

When the river takes a breather, the stillwater game picks up the slack. These lakes offer clear water and hungry fish regardless of what the forks are doing.

  • Whitefish Lake (Mackinaw): This is the most reliable producer for big numbers right now. The Lake Trout (Mackinaw) are in a steady groove in the deep trenches. We are finding the most success vertical jigging in the 140–180 foot range. White tube jigs or heavy lead-heads tipped with cut bait remain the “old reliable” setup for consistent hookups.

Fishing Report, Kalispell

Kalispell Stillwater: The Spring Pivot

When the river is high, the stillwater game around Kalispell is where the most consistent local action is found. The lakes are offering great clarity and active fish.

  • South of Town (Rainbows): The ‘bows are patrolling the sun-drenched shallow littoral zones. Concentrate your efforts on the shallow shelves and primary drop-off transitions where the water warms first.

  • West of Town (Grayling): Target the “green lines”—the transition zones where last year’s weedbeds meet the open basin. A slow “figure-eight” strip with a small midge or scud pattern is the ticket.

Pro Tips for Spring Stillwater Success

  1. Find the Warmth: In April, a temperature change of even two degrees is massive. Focus on northern shorelines that receive the most direct southern sun exposure throughout the day.

  2. The “Slow & Low” Strategy: Early spring stillwater is a game of patience. Use an Indicator Rig with a Balanced Leech (olive or black) as your lead and a Chironomid Nymph as your dropper.

  3. Master the Depth: Fish are often hugging the bottom in the spring. If you aren’t getting hits, adjust your indicator in 6-inch increments until you find the exact column where the fish are cruising.

  4. The Hang: Before you recast, let your flies hang vertically under the boat or at the end of your retrieve for 10 seconds. Trout often follow a moving fly and will only commit once it “stalls.”

Missouri River: Fishing Report

While the local freestones are pushing mud, the Missouri below Holter Dam remains the most stable game in the state. If you’re looking for clear water and consistent bugs, this is the destination.

  • The Stats: Flows are holding at 3,050 CFS with water temperatures peaking at 46°F.

  • Nymphing (Solid & Consistent): This is the high-percentage play. Run a two-fly rig with a Sowbug (pink or rainbow) as your lead and a Green Machine as your trailer. Focus on the walking-speed water and soft inside seams.

  • Dry Fly Hunting: It is officially Mayfly season. While nymphing pays the bills, there are legitimate dry fly opportunities for those willing to hunt.

    • The Hatch: BWOs and Midges are coming off daily, usually peaking in the afternoon.

    • The Strategy: Scan the foam lines and glassy slicks for rising pods. Bring your “A-game” with long 12–15 foot leaders and a delicate delivery using Griffith’s Gnats or BWO Cripples.

Guided Trips

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