Past week
Southern Alberta Fishing Report — Wednesday, September 23, 2026
Wednesday, September 23, 2026
Southern AlbertaOverview
Today brings excellent fishing opportunities across Southern Alberta as many rivers are approaching optimal conditions. With September being a prime month for fly fishing, the current flow levels create the perfect backdrop for active hatches, especially midges and Blue-winged Olives. Autumnal feeding behaviors are kicking in, making it an ideal time to be on the water.
River & Lake Conditions
- Sheep River near Okotoks: The flow is steady at 4.5 m³/s, falling, and remains near typical summer levels. This consistent flow promises excellent fishing for rainbow and brown trout, especially near side channels.
- Ghost River: At 4.4 m³/s and falling, flows exceed typical late spring highs but are manageable for fishing. Target bull trout in deeper pools and cutthroat trout where riffles calm near banks.
- Highwood River near High River: This river is slightly on the rise at 4.0 m³/s, offering strong prospects for targeting rainbow and cutthroat trout, especially in the canyon sections.
- Oldman River near Lethbridge: Still elevated at 44.4 m³/s but declining, ideal for targeting walleye in eddies and behind structures. As clarity improves, trout fishing will also become more viable.
- Crowsnest River: Currently flowing at 3.0 m³/s and dropping, this well-loved trout river is setting up nicely for both fly and spin fishing as water clarity returns.
Weather Impact by Area
- Bow Valley / Foothills: With winds around 25 km/h from the southwest, expect challenging conditions for delicate dry fly presentations. Nymphing with weighted rigs or streamers is advisable in these conditions, particularly in the Banff and Cochrane stretches.
- Crowsnest Pass: Moderate winds throughout the day, with highs near 19°C. Focus on nymph rigs and mid-sized streamers due to consistently strong surface activity predicted for the afternoon.
- Central Alberta: Mostly clear skies and warming temperatures make for a pleasant fishing day. The increase in southwestern winds may make casting challenging on the Bow below Carseland Dam; position boats to allow for optimal casting angles.
Hatch Activity & Fly Fishing
- Sheep River: Heavy midge activity favors nymphs such as Zebra Midges (#18-22) under indicators. Transition to Blue-winged Olive dry patterns (#18-22) when surface rises hint at hatch timing, typically around midday.
- Crowsnest River: Primetime for pre-hatch nymphing with Pheasant Tail and Hare's Ear nymphs (#16-18). Streamer fishermen can utilize patterns like olive Woolly Buggers in the deeper runs.
- Oldman River: Anticipate excellent action with Blue-winged Olives coming off. Start with sub-surface emergers in riffles and try small dries when hatch peaks during the afternoon.
Spin & Bait Fishing
- For walleye and pike, use jigs tipped with minnows or nightcrawlers in slower water of the Oldman near Lethbridge. For trout in smaller rivers like the Ghost, lean towards Mepps Aglia spinners (#2) in runs and pools.
- In stocked ponds, PowerBait in rainbow and fluorescent colors remains highly effective for recently introduced rainbows.
Recent Stocking
- Mclean Pond: Recently stocked with Westslope Cutthroat Trout – fishing at the pond is promising.
- Mount Lorette Ponds: Both Westslope Cutthroat and Rainbow Trout were stocked, making it a top draw for both fly and spin anglers.
- Sibbald Meadows Pond: Newly stocked Rainbow Trout are here; ideal for families and those looking for a relaxed angling experience.
Top Picks Today
- Sheep River near Okotoks: Strong BWO and midge activity. Try Parachute Adams (#18) for flies and Blue Fox Vibrax for spin.
- Oldman River near Lethbridge: Great chances for walleye with jigging setups in deeper pools. For flies, try streamers like Clouser Minnows early in the day.
- Mclean Pond (stocked): Target Westslope Cutthroat with small spinners or Woolly Buggers (#8).
Safety & Regulations
- Flows are generally safe, but caution in higher flow areas like the Oldman is advised.
- All bull trout are catch-and-release only throughout Alberta.
- Be mindful of potential spawning brown trout as September rolls on; avoiding redds is crucial for conservation.
- Seasons and closures vary by water body and species — always verify at albertaregulations.ca before fishing.
Published 04:31 a.m. MT from WSC hydrometric data, ECCC weather & Alberta stocking records — always verify current regulations before fishing