Upper Basin: Leadville to Buena Vista
August 15, 2026
Flow in Hayden Meadows | 46 CFS |
|---|---|
Flow at Granite: | 109 CFS |
Water Temp: | 53-65 degrees |
Water Clarity: | Clear |
We continue to see strong hatches of caddis and various stoneflies above Buena Vista this week. Hayden Meadows hosts a dense population of caddis so expect the strongest hatches here through July. Along with caddis, this region is experiencing yellow sally (14-16), golden stonefly (8-12), and midge (18-22) hatches . This smorgasbord will produce some outstanding dry fly fishing. With lower, clear flows you can expect fish to be more discerning so pay attention to available forage so you can closely match the natural insects with your imitations. Attractor patterns can still produce but you may find that realistic patterns are more productive as fish key in on specific food. A careful approach and good first cast can make all the difference between a mediocre and outstanding day of fishing. The upper basin has the most favorable water temperatures on the whole river and offers better fishability through much of the day.
Smoke from forest fires around the west is varying factor in the valley and changes day by day. The proximity to the Willow Fire near Leadville does mean the upper basin is more vulnerable to poor air quality at the moment.
Middle Basin: Buena Vista to Salida
August 15, 2026
Flow at Hecla Junction: | 216 CFS |
|---|---|
Water Temp | 55-66 degrees in the shallows. Milder in deeper areas of the river. |
Water Clarity: | Clear |
We advise anglers on the river to try for an EARLY start to take advantage of the coolest hours of the day, and to consider an afternoon siesta during the peak heat of the day. Milder weather for the next week will extend productive hours into the afternoon. River fish will naturally move off the feed during the heat of the day, migrating to more oxygenated zones of the river where they can rest until temperatures cool again. The last hour or so of daylight can see the action kick into gear again as temperatures drop and trout key on egg-laying caddis and mayfly spinners. The Arkansas River is unique due to the higher than average dissolved oxygen content throughout the system, and as such offers respite to trout even when water temperatures warm where other rivers can struggle. Shifting sights to high elevation creeks and lakes can be the perfect alternative to the river, offering more solitude and cooler temperatures. We are seeing fish consistently hold in shallower and faster zones to feed, matching their activity to the water temperature and insect behavior. Golden stonefly (10-12), yellow sally (16-18), pale morning dun (16-18), and red quill (12-14) hatches are ongoing in this region, and the combined food base is creating some excellent dry and dry dropper fishing. Midges (18-22) are still important forage with hatches are occurring daily, producing some great, technical dry fly fishing opportunities. 4x-5x tippet is appropriate.
Lower Basin: Salida to Canon City
August 15, 2026
Flow at Wellsville: | 270 CFS |
|---|---|
Water Temp | 59-70 degrees in the exposed shallows in upper Bighorn Sheep Canyon. Milder in deeper areas of the river. Expect generally warmer temperatures closer to Canon City. |
Water Clarity: | Generally clear, 3' or better of visibility. |
Beginning last week, Twin Lakes started releasing an additional 30 CFS down Lake Creek into the Arkansas River. For the foreseeable future, this extra water will provide a little more cushion for boating, which will be a welcome change for float anglers and guides. It's not a lot of water, but a little can make a big difference in a drought year. The river remains in the optimal flow range for resident brown trout and is still incredibly wadeable. We see afternoon showers in the forecast for the foreseeable future which may also impact flows day to day and help moderate our afternoon air temperatures.
Summer has arrived early and great fishing can be had NOW, especially in the early hours of the day. We encourage river anglers to consider an EARLY start to the day and take a break during the heat of the day, from roughly 2 to 5PM on the warmer afternoons. Consider an earlier break on the hottest days. It's also a good strategy to seek opportunities at higher elevations where temperatures are less of a concern. Resident river fish will naturally shift out of forage mode in early to mid afternoon and fishing can be challenging at best while the fish rest. The last hour or so of daylight can see the action kick into gear again as temperatures drop and trout key on egg-laying caddis and mayfly spinners. The Arkansas River is unique due to the higher than average dissolved oxygen content throughout the system, and as such offers respite to trout even when water temperatures warm where other rivers can struggle.
Wade fishing is exceptional throughout all river basins and floating is incredibly technical/limited in the lower basin. Boaters should be experienced and intimately familiar with public and private land boundaries before putting on. We are now seeing yellow sally stoneflies, golden stoneflies, red quills, pale morning duns, and various summer caddis hatches below town. The lower reaches of Bighorn Sheep Canyon have also seen sporadic trico hatches. Combined with an early emergence of seasonal grasshoppers, these are all producing outstanding dry dropper fishing and are creating great dry and double dry opportunities at times. Sallies average a 14-16, golden stones a 10-12, red quills a 12-14, pale morning duns a 16-18, and tricos a 22-24. Wet and dry imitations alike need to be in the arsenal to take advantage of the growing mass of food below Salida.