Table of Contents

News from the Underground - Transition Time

The mid- to late-summer patterns are familiar to most musky anglers. Many of us have become accustomed to using fast moving baits over deep weed edges with ripped rubber being an excellent follow-up. During mid-day, the muskies seem to shift off the weed edges into deeper water. Then they move shallow again during the low-light period around sunset.

But the times they are a-changin’! For those in the northern part of the musky range, the weather has already moderated. Yes, the mid-day temperatures can still be well into the 80s and even occasionally touch 90 degrees, but the overnight lows have shifted into the 50s. That means water temperatures are on the drop and the muskies will soon be on the move. The shallow water bite is coming.

If you’re fishing regularly, you may have already noticed that the weeds are starting to die off and pull away from the bottom. The deep weed edge bite is not what it once was. And you may be starting to see that panfish are starting to invade the interior of the weeds rather than lingering deep along the edge like they were in mid-summer. The food chain is starting to shift shallow, and the muskies will follow.

That means a shift in practice and patterning is in order. You want to be on the cutting edge of a new pattern rather than waiting to hear about it from other anglers. You should be checking shallow as part of your milk run. In fact, these shallow areas tend to cool more quickly overnight, drawing muskies into their preferred water temperatures in the low 70s and high 60s. Since these premium water temperatures occur in the morning in the shallows, you should probably be checking them first in the morning and returning to them occasionally through mid-morning. Depending on the lake, this could be broad bare sand flats, inside weed edges, or even shallow weed flats. The main thing is this is shallow water fishing: you are looking for depths less than 5 feet deep. You may even be able to spot muskies cruising the shallows with your eyes.

Once muskies have been located, presentations need to be tailored to the areas where they’ve been found. In weedy cover, muskies are often in ambush mode. Ambushing muskies are less likely to chase baits great distances, so getting a lure in their face to trigger them is key. Dive-and-rise baits, twitch baits, safety-pin-style spinner baits, etc… are excellent presentations in such circumstances. Fish slowly and methodically with casts landing close together to be sure areas are covered thoroughly. If you want to work the area more quickly, consider trolling spinnerbaits above and through shallow weed flats. In areas like sand flats and areas with sparse cover, muskies are more willing to chase down their prey. Straight-retrieved baits are useful for covering water in these circumstances: bucktails, prop-style top water, and even quickly worked gliders are top-shelf presentations under these circumstances. Generally you can work more quickly through these areas, spacing your casts much further apart.

Late summer is a time for transition. The weed edge muskies of mid-summer start to move into the shallows followed by the big open water fish. This is when anglers need to keep their finger on the pulse of the pattern by checking the shallows regularly. Don’t miss out on a week of great shallow-water fishing by stubbornly sticking to well-worn deep weed edge patterns. Get dialed in on the next bite before the rest of the musky angling community knows it’s happening, and you’ll end up with more and bigger fish in your net.

The Bite - Your Musky Briefing

Wisconsin

Fish are still very heavily concentrated on weed and rock points adjacent to deep water or river channels. They are willing to eat pretty much anything; however, since most fish are being caught in the figure eight the best baits lately have been bucktails. Very intense feeding windows are being observed based on the moon and weather fronts, so be sure to time your outings based on these events.

What’s Working Now — High quality figure eights executed with speed and elevation changes are the key to triggering these fish.

What’s Out — Start-stop baits are of limited use these days.

Minnesota

Mid-lake structure is still producing in northern lakes, with rubber and bucktails providing much of the action. In the southern part of the state, deep weed edges are producing with heavily weighted Medusas worked violently through the weeds being the most common source of action. Some fish are being seen in shallow clean-bottomed areas, but the shallow bite has not yet stabilized.

What’s Working Now — Speed is an important factor in getting bites rather than lazy follows. Burning bucktails and aggressively-worked dive and rise are producing. Early morning and mid-afternoon windows are your best bet for active fish.

What’s Out — Slow-rolling baits will produce follows but not bites. The evening bite has been flat the past week or so.

Iowa and Illinois

In the south, water temps have been sitting anywhere from 82-86, averaging 83 most days. For our multi-species trips we've still been targeting fish sitting about 15'. Most fish are sitting just above the thermocline (the thermocline is around 16') , suspended above deeper rock (around 30'), timber and ledges. As well as deeper timber in the 15' range and ledges in the 15' range. The best of this structure will be found in areas adjacent to the main basin. The best presentations for these fish have been drop shots (Yum FFS Minnow), deep-diving crankbaits (Livingston Howeller DMC), and plastic swimbaits (Megabass Magdraft and Livingston Mustang).

What’s Working Now — With presentations needing to be so deep, modifying the swimbaits to achieve proper depth at speed has been crucial. Add weight to achieve these desired depths.

What’s Out — Fish have been turning up their nose at shallow presentations. Go deep.

Western Ontario

The arrival of a significant cold front has started to drop water temperatures. Muskies are still using mid-lake rock structure, but look for them at various depths based on forage positioning. Rock areas with quality weeds are the most important right now. Blades have been most effective.

What’s Working Now — Scanning areas for forage is increasingly important as fish transition. Those awesome mid-lake reefs are still awesome, but fish can be on the crown or suspended just off of the reef depending on timing. Bucktails are a great way to search, but swimbaits are providing an alternative look that is also getting bit.

What’s Out — Weed spots are degrading as we head into fall. We are not finding fish in dying weeds, so be selective in your choice of weed beds to fish!

Northeast US

Fishing has been red hot if you know how to transition and pivot to stay on them. Both inside and outside weed edges are holding fish in the mornings and topwater baits have been what they’ve wanted. Firing casts along the inside weed edge and retrieving parallel to the weed line has been productive. Trolling has been the best tactic when fish move out to the flats. Productive trolling baits have been spinnerbaits and crankbaits trolled close to the bottom. Moon rise has been the best bite of the day lately.

What’s Working Now — Being flexible is key. Fish are moving from weed edges to flats and back to edges throughout the day. Follow the fish as they move, or you will have long droughts in activity.

What’s Out — The night bite has been spotty the last week or so. Focus on daylight hours for the most productive windows.

Eastern Canada

Mid summer is here and the action has been great. Wild weather in western Quebec and eastern Ontario has been dramatic with huge rain falls, tornado warnings and some period of extreme heat. Most anglers are having luck targeting fish in the early mornings and avoid the warm afternoons. Glide baits, bucktails, and dive and rise baits all are getting much attention with some anglers having success on surface baits. Check local weather and brace yourself for a great end to August!

What’s Working Now — Speed has been they key to turning follows into bites. Keep the pedal to the metal to trigger these fish.

What’s Out — Rubber baits have not been useful the past couple weeks.

Underground Intel - The September Shift

Cold fronts get blamed for a lot of tough musky fishing. A sharp temp drop, hard north wind, and rising pressure can change a lake overnight, compressing activity windows and turning reliable follows into ghosts. But the biggest mistake anglers make post-front is trying to recreate the bite they had before it. The front isn’t the story—what happens as conditions stabilize is.

Across Northwestern Ontario in late August, a significant front broke an extended summer pattern. As the weather settled, muskies didn't return to precisely where they were; they offered a sneak peek at the September transition.

The First Day Isn't the Pattern Bright post-front skies and high pressure often lock fish down. However, a musky that won't move isn't necessarily a musky that left. Avoid burning out by abandoning prime water or constantly swapping lures. Recognize that you are fishing through temporary behavior, not a massive structural migration. Day one gives you data; the next few days tell you what that data actually means.

September Is a Transition, Not a Switch Fish don’t follow calendars. Early September can mirror August, with high water temperatures and scattered forage. The real shift happens in the rate of thermal loss: nights grow longer, cold fronts carry more weight, and lakes eventually lose more heat overnight than they gain during the day. Muskies won't abandon summer holds on September 1, but how they use those locations will evolve.

Keep Deep Rock on the Short List Deep rock structures—reefs, points, and breaks—are ultimate transition zones because they allow fish to adjust without traveling far. A musky might hold in 25 feet along a deep break, then slide up onto the reef crown during a feeding window. Rather than marking just the spot where you hooked a fish, pay attention to how muskies use the whole structural complex as bait moves vertically.

Bait Drives the Decisions Stop asking where muskies should be in September based on the date, and start asking where the food is right now. Whether forage fish like walleyes, perch, or whitefish settle into specific depth ranges around rock, muskies will follow. When bait repositions, predators respond—often before we realize the food has moved.

Timing Matters in Shallow Water Don't assume September forces an entirely offshore game. Shallow water still yields tremendous opportunities, but it becomes a timing-and-window pattern rather than an all-day affair. Windblown points, inside weed edges, or shallow reefs can come alive in the final hour of daylight, under heavy cloud cover, or when wind pushes bait across the structure.

Key Indicators to Track Instead of rushing into heavy fall tactics early, let the lake tell you how far fall has progressed:

  • Water Temp Recovery: Track the overall downward trend, not just single-day spikes.

  • Bait Depth Shifts: If forage moves from 20 feet up to 14, muskies aren't far behind.

  • Contact Position: Log whether contacts occur on deep edges, mid-breaklines, or shallow crowns.

Keep a simple transition log of every follow, strike, and catch. September rarely shifts all at once, but anglers who catch these subtle movements early will stay ahead of the curve.

Underground and In the Net

A nice spotted musky from north of the border!

Another early season fish from the east!

This northern Wisconsin chunker ate a bucktail boatside.

Want to share your pictures with the Underground? Send them to [email protected].

Gear Review - Garmin LiveScope 2

LVS44 (left) is the jack-of-all-trades transducer while LVS42HD (right) is the short-range master.

In early July, Garmin released its latest offering in the live sonar market: LiveScope 2. One of the main advantages over Garmin’s previous generations of live transducers is that these transducers don’t require the “black box”. All image processing is now done within the transducers themselves. The cable from the transducer is split, with one wire going to a battery and the other sending the sonar signal to a compatible chartplotter. This will simplify installation compared with previous generations where the black box needed to be housed and installed somewhere within the boat. For those anglers that use multiple LiveScope transducers, this will be a big space saver.

Another improvement for these transducers compared to the older generation is the beam angles. The beam width for forward mode remains 20 degrees, but the vertical beam width has increased from 135 degrees to 165 degrees. This provides a modest improvement to coverage behind the transducer in forward mode. The big improvement comes in perspective mode where side-to-side cover is now 180 degrees from the transducer. This means the coverage will be similar to what anglers expect from side imaging, but in a live sonar format.

With this release, Garmin has split the market in two by producing two distinctly different transducers: the LVS44 and the LVS42HD (high definition). The LVS44 is the more traditional live sonar transducer, the direct successor to the previous generation, the LVS34. In the LVS44, anglers can expect greater range as well as slightly improved target separation compared to previous generations. Testing has revealed that the effective range of the LVS44 is around 25% greater than that of the LVS34. Depending on water conditions this can put effective range out to around 150 feet.

The LVS42HD, on the other hand, is a shorter-range transducer with significantly improved target separation. Its maximum effective range is around 70 feet. Its strength is its higher level of detail compared to both the older generation transducers and the new LVS44. This is probably of great use to crappie anglers where the ability to distinguish smaller individual fish from cover like brush piles and weeds is very useful. For muskies, improved target separation is probably only of use when trying to see muskies that are lying on the bottom in mid-depth areas, although the ability to perceive muskies in moderately dense weedy cover could also have some utility.

The cost of these transducers is significant. The previous generation sold for about $1700 ($1200 for the transducer and $500 for the required “black box”). The LVS44 costs around $2000 while the high definition LVS42HD will set you back $2200. For those looking to get into the live sonar game for the first time, the most significant outcome of this release is that there will likely be a healthy second-hand market for the previous generation.

The Underground Verdict: For those anglers looking to stay on the cutting edge, the LVS 44 offers measurable improvements to detection range, but at a high cost. The LVS 42HD will have limited application in musky angling unless anglers are seeking to detect muskies near the boat in cover. If that is your game and you’re willing to pay a premium price for that specific application, the high-definition transducer may be for you. For those anglers that use live sonar for spotting deep follows and to maintain boat control in relation to cover, the new transducers provide little if any new value.

Want a particular piece of musky gear reviewed? Make a suggestion to [email protected]. Lures, tackle, electronics - we’ll give you the Underground low-down whether it’s positive, negative, or something in between!

Getting 1% Better…

Prioritize the “musky trifecta” when choosing which spots to fish carefully: depth, complexity, and forage. While depth and complexity of structure are enough to hold muskies, the presence of forage signals that muskies may be feeding.