While trout opportunities remain limited, bass, musky and carp anglers should have plenty to look forward to over the coming weekend.
Trout Fishing Remains Limited, But the Upper Grand River Still Offers Opportunity
The biggest conversation around trout fishing continues to be water temperature.
Although the upcoming cool down is encouraging, most of Southern Ontario's freestone trout rivers are still running too warm for ethical catch-and-release fishing. The Credit River is a perfect example. Overnight lows are no longer dropping enough to cool the river below the generally accepted safe threshold of 20°C, meaning fish are already under considerable stress before anglers even begin fishing.
For that reason, we continue to recommend giving rivers like the Credit a break until we receive a more sustained period of cooler weather.
Fortunately, there is still one excellent option for trout anglers.
The Upper Grand River continues to benefit from cold water being released from Shand Dam, keeping temperatures within a safe range. If you're hoping to get one more trout outing in before the true dog days of summer arrive, concentrate your efforts above Fergus and as close to the dam as possible. Water temperatures gradually climb the farther downstream you travel, so stretches around Tombstone, Second Line and the upper reaches below the reservoir will offer your best chance at productive fishing while still prioritizing the health of the fishery.
Bass Fishing Continues to Shine
For most anglers this weekend, bass will be the main attraction.
Fishing has remained excellent throughout Southern Ontario, and the slightly cooler weather should keep fish active for longer periods of the day. That doesn't necessarily mean fish will stay shallow all afternoon, but it should make them noticeably more willing to feed than they have been during some of the recent stretches of intense heat.
Smallmouth bass, in particular, have been following a fairly predictable summer pattern. During the first few hours of daylight and again toward sunset, they push up onto shallow rock, shoals and weed edges to feed aggressively. As the sun climbs and water temperatures rise, they typically slide off into slightly deeper water where conditions are more comfortable.
Fortunately, those fish often don't move very far. If the shallow bite slows, simply work the first break lines, deeper weed beds, offshore points or rocky humps in the 10 to 15-foot range. A sinking line paired with a streamer can be incredibly effective for reaching these fish during the middle of the day.
Largemouth bass behave a little differently.
Unlike smallmouth, largemouth generally thrive in warm summer conditions and are happy to stay shallow provided they have access to shade and cover. Thick weed beds, lily pads, fallen trees and boat docks all become prime targets throughout the hottest parts of the afternoon. Rather than searching open water, spend your time picking apart heavy cover where bass can escape the bright sun while waiting for an easy meal.
Mid-Summer Is the Time to Downsize
One adjustment that consistently pays dividends this time of year is simply becoming more subtle.
Early in the season, bass are aggressive, relatively unpressured and often willing to chase large, flashy flies. By mid-July, however, many of Southern Ontario's popular lakes have seen weeks of fishing pressure. Fish become more selective, particularly in clear water where they have plenty of time to inspect your presentation.
Instead of immediately reaching for the largest streamer in your box, consider downsizing both your fly and your tippet.
If you're fishing open water without heavy weeds or timber, dropping down to 3X tippet can make a noticeable difference in the number of strikes you'll receive. Fly anglers have a real advantage here because we can present lightweight, natural-looking patterns far more delicately than many conventional bass anglers.
We've been having excellent success recently with jig-style flies like the Dirty Bird Bugger, which combines a heavy tungsten head with lots of natural movement. It gets down quickly while maintaining a soft, lifelike profile that bass seem to find difficult to ignore.
Another standout has been Hogan's Headstand, a worm-inspired pattern that fishes beautifully along rocky bottoms and sparse weed edges. It excels when bass become reluctant to chase faster-moving flies, allowing you to slow everything down while still keeping your presentation right in the strike zone.
Topwater Doesn't Have to Be Loud
Many anglers associate topwater fishing with aggressive popping bugs, but that's only one way to fish the surface.
During calm summer conditions, especially on heavily pressured lakes, quieter presentations often outperform noisy poppers.
Patterns like the Rio Soft Chew imitate struggling insects and can be twitched gently across calm water without creating excessive disturbance. Likewise, the Rio Foam Slice Frog remains one of our favourite summertime largemouth patterns. Its inverted hook design and effective weed guard allow it to slide through thick lily pads and matted vegetation while producing just enough surface movement to draw explosive strikes.
Sometimes a subtle wake is all it takes.
Musky and Carp Continue Their Summer Pattern
Musky fishing has remained consistent since opener, and this weekend's weather should provide another excellent opportunity to chase them.
The cooler temperatures and incoming rain may encourage fish to move and feed a little more actively than they have under bright skies. Focus on classic summer structure such as weed edges, points and submerged vegetation, and don't feel like you need oversized tackle to participate. Many of our local fisheries hold plenty of fish that are perfectly manageable on an 8 or 9-weight outfit paired with an appropriately sized fly and wire leader. Remember that musky shouldn't be fished for in water warmer than 80F, many of our larger bodies of water are fine for targeting these fish still however some small musky lakes and rivers may be on the warm side for the moment.
Carp continue to provide some of the most exciting sight fishing available anywhere in Southern Ontario.
Whether you're exploring urban rivers, Great Lakes shorelines or shallow bays, there are opportunities almost everywhere. Small crayfish patterns, nymphs and baitfish imitations continue to produce consistently, and with slightly cooler conditions this weekend, fish should remain active throughout much of the day.
Final Thoughts
After weeks of relentless heat, this weekend looks like exactly the kind of reset both anglers and fish have been waiting for. While trout anglers should continue to exercise caution and focus only on the colder reaches of the Upper Grand River, warmwater fishing is shaping up beautifully.
If you're looking for a comfortable weekend to spend on the water, this one is well worth making the time for.
As always, if you need help deciding where to fish, what flies to bring, or how to adapt to current conditions, stop by the shop or get in touch. We're always happy to help.
We'll see you on the water.
