Date: August 6, 2026

The Bottom Line: Water levels on the Bow River are right where they should be for this time of year, and conditions continue to be excellent. Large stoneflies and grasshoppers are still drawing explosive topwater eats, and we're seeing some of the biggest fish we've encountered in the past few years. Thanks to the deep snowpack earlier this season, water temperatures remain cool, creating outstanding fishing opportunities as we move through summer.

The Move: Trout have largely transitioned out of the banks and into their typical summer holding water, so focus on seams, riffles, drop offs, and structure where fish can comfortably feed. Big dry flies remain a great option, especially stonefly and hopper patterns, with fish willing to rise aggressively. Fishing has been best later in the day as trout become more active, making afternoon and evening outings your best bet for consistent action.

Water Level and Clarity: Fluctuating levels daily, refer to https://rivers.alberta.ca/ for accurate levels. Clarity is significantly improving. Anglers will see at least 5 feet of clarity depending on the stretch of the Bow River you choose to fish.

Water Temps: Cold.

Wading Difficulty & Safety: Now that we're seeing lower water levels, obstructions (log jams, gravel bars) are more visible. Stay aware and look ahead if you're floating.

Understanding Summer Trout Behaviour

As summer conditions settle in on the Bow River, lower water levels and improved clarity allow trout to establish predictable feeding patterns in their seasonal holding water. Although air temperatures are warm, this year's deep snowpack has kept water temperatures relatively cool, helping trout remain active throughout the day. As with all salmonids, trout seek out well-oxygenated water where current delivers a steady supply of food while minimizing the energy required to hold position. This often places fish along gravel bars, drop-offs, riffle edges, current seams, and other transitions where depth and flow create ideal feeding lanes. These areas provide both oxygen-rich water and easy access to drifting insects, making them some of the most productive places to target throughout the summer.

The Strategy: Why These Techniques Work

• Fish Big Foam Flies While You Can: Stoneflies and grasshoppers are only a major part of the Bow River's menu for a short window each year, making this one of the most exciting times to fish. While nymphing will always produce fish, it's hard to pass up the opportunity to watch trout explode on large foam stoneflies and hoppers—especially with some of the biggest fish we've seen in years showing themselves this season.
• Target Summer Holding Water: As water levels settle into their summer range, trout move away from the banks and into classic holding water. Focus your efforts on gravel bars, drop-offs, riffle edges, current seams, and deeper runs where fish can conserve energy while taking advantage of cool, oxygen-rich water and a constant supply of drifting insects.
• Keep a Streamer Ready: Streamers continue to be an excellent option for covering water and targeting larger, aggressive trout. Work them through deeper buckets, structure, and current transitions with an active retrieve to trigger reaction strikes from fish looking for a bigger meal.
• Fish Later in the Day: Thanks to the large snowpack earlier this year, water temperatures remain cool and trout are staying active well into the afternoon and evening. Recent fishing has been most consistent later in the day, making afternoon and evening sessions a great time to be on the water.

The Summer Hatch Mix (Big Dries & Evening Hatches)

While the peak of the stonefly hatch has passed, trout are still keyed in on large stonefly imitations and continue to crush big foam patterns. Grasshoppers are becoming more abundant along the banks, and as windy afternoons knock them into the water, they'll become an increasingly important food source. PMDs and Caddis remain consistent throughout the summer, with pods of rising fish showing up during the evening hatches. Streamer fishing also continues to produce, especially when targeting larger trout in deeper water.

• The Play: Big foam stoneflies and hoppers should be your first choice. Fish them confidently over riffles, seams, drop-offs, and summer holding water. As evening approaches, switch to PMD or Caddis dries when you find pods of rising fish.
• Nymphing: If fish aren't committing to the surface, a dry-dropper setup is hard to beat. Run a stonefly nymph beneath a large foam fly, or pair it with smaller PMD or caddis nymphs to match the insects drifting below the surface.
• Streamers & Swinging: Streamers remain an excellent option for targeting aggressive trout. Focus on deeper runs, drop-offs, and structure with natural-colored patterns and vary your retrieve to trigger reaction strikes from larger fish.