What to expect on the river this summer

Summer is officially here, and for anglers across the West, that means it's time to dust off the gear and head to the water. But before you plan your next trip, it’s worth taking a look at how this past winter’s snowpack and spring runoff are shaping up across the region. The 2024–2025 season brought a mix of conditions to the Rockies — from heavy snow in some areas to troubling drought signs in others — and that’s going to have a big impact on the quality and timing of fishing opportunities this summer.

In Idaho, a higher-than-average snowpack brought some welcome relief after several dry years. While that’s generally good news for rivers and reservoirs, it also means there was a higher risk of flooding during the runoff. Unusually warm temperatures in the late spring caused that runoff to come earlier than usual, which shifted the fishing timeline forward a bit. As a result, July is expected to offer some solid fishing conditions, but by August, many rivers will likely be running lower and warmer, making for a slower, more challenging month on the water.

Montana saw similar snowpack conditions, but it’s dealing with even warmer water temperatures than Idaho heading into summer. The early heat has already triggered some fishing restrictions by Montana Fish, Wildlife & Parks to protect stressed trout populations. Anglers should stay informed on local regulations and be prepared for potential afternoon closures or catch-and-release only zones, especially as water temps continue to rise.

Wyoming didn’t fare as well this winter. The state recorded a below-average snowpack, and with warmer temperatures arriving early, concerns over drought are growing. In addition to water shortages in some river systems, there’s also a heightened risk of wildfires, which could lead to restrictions on campfires or backcountry access in certain areas. Anglers planning to explore Wyoming’s waters this summer should come prepared for variable conditions and do some extra research before heading out.

Colorado, as usual, was a mixed bag. While parts of the state — like the South Platte — came in slightly above average at 104% of normal snowpack, other regions, such as the San Juan Mountains, saw only about 69%. Statewide, snowpack averaged out to about 90% of normal. That means most rivers won’t see quite the same peak flows as in heavier years. Anglers can expect good conditions in late June and early July, but as water levels drop and temperatures climb, late July through August may bring slower fishing in many areas, particularly at lower elevations.

Overall, the outlook for summer fishing in the Rockies is a bit of a mixed forecast. Timing will be everything this year — with many rivers peaking earlier than usual, the best windows may come and go quickly. Keep an eye on local reports, stay flexible, and don’t be afraid to head for higher elevations or spring-fed streams if things get too warm down low. It’s shaping up to be a dynamic season, but with the right planning, there’s still plenty of great fishing to be had.