Introduction
Top 5 Wyoming rivers this week highlight the best windows based on live flow data. We review flows, weather, hatches, and reports every week. This Wyoming river fishing report is also a Wyoming fly fishing guide. It tracks Wyoming fishing conditions and calls out the best Wyoming fly fishing water. Use this Wyoming fly fishing rivers update to plan your next trip and adjust if conditions shift.
Updated: August 2, 2026 with live condition scores from FlyGuysNLies.com
Quick Summary
Flows are stable and fishable across the state. Hoppers and terrestrials are the story this week and fish are looking up. Caddis, stoneflies and mayflies fill in through midday, with midges early. Lead with hoppers and dry-dropper rigs, and work the banks and inside seams; drop a nymph when the surface goes quiet.
Heat Advisory: Fish Early, Check Water Temps
Air temperatures hit 97°F this week and 3 Wyoming reaches are under an active fishing closure. Plan around the heat.
Fish the morning. Water temperature peaks in late afternoon, so the best and safest fishing runs from first light to late morning.
Carry a thermometer. At 65°F trout are already stressed; at 67°F and above, stop fishing and move to colder water. If you do fish warm water, use heavier tippet to shorten the fight, keep the fish wet, skip the photo, and revive it fully.
Check closures before you drive. Voluntary closures aren’t enforced, but they’re issued when biologists see real mortality risk, and they change weekly — confirm current status with Wyoming Game and Fish Department.
Every river below is clear of active closures. Check the water temperature listed for each one before you fish it — not all are running cold this week.
Top 5 Wyoming Rivers Fishing This Week
Each river featured below has optimal flows, good water quality, and active hatches. These best Wyoming rivers provide diverse fishing opportunities with current Wyoming river conditions that favor active feeding. Whether you’re targeting tailwaters or freestone streams, the top 5 Wyoming rivers this week provide exceptional fishing.
1. Gros Ventre River – Kelly to Moose
Northwest Wyoming
The Gros Ventre River is currently flowing at 293 cfs (normal) with a falling trend. Flows are fishable today. Water Temperature: 60°F (prime). The Verdict: Excellent Conditions This week’s forecast shows temperatures ranging from 63-81°F. Calm winds support dry fly presentations.
Insect Activity: Golden stoneflies and yellow sallies are still coming off in the mornings through this stretch of early August, so don’t sleep on a size 10-16 stonefly nymph before the sun gets high. Afternoons and evenings bring Hydropsyche caddis in the 12-18 range, and grasshoppers and ants are drawing consistent looks from bank-huggers on breezy midday hours. Once the light drops at dawn and dusk, streamers connect with the bigger fish holding in the slower reaches.
Where to Fish: At 293 cfs and 60°F, the Gros Ventre is running right in its prime window, so wade the riffle-to-run transitions in the morning with a Kaufmann’s Stone up top and an Elk Hair Caddis trailer. Slow down through the deeper bend pools and undercuts in low light for streamer swings, and switch to a Morrish Hopper along grassy banks once temperatures climb into the 80s midday.
Gear Tip: Start with a two-fly nymph rig and a yarn indicator early. Shift to dry fly or dry-dropper during hatch windows. A 9-foot 5X leader with light tippet keeps the rig natural in these flows.
Presentation: Start shallow, then add weight or depth as you move into deeper runs and pockets. Use longer drifts to cover tailouts and seam water.
Regulations: General Area 1 regulations: 3 trout/day (streams), no more than 1 exceeding 16 inches, no more than 1 cutthroat exceeding 12 inches. Maximum 3…
2. Middle Fork Powder River – Barnum
Central Wyoming
The Middle Fork Powder River is currently flowing at 3 cfs (normal) with a stable trend. Flows are fishable today. The Verdict: Excellent Conditions This week’s forecast shows temperatures ranging from 58-76°F. Calm winds make indicator nymphing more effective.
Insect Activity: Flows are down to 3 cfs against an 80 cfs high mark, so this is skinny, technical water rather than a heavy hatch fishery right now — fish are concentrated and food-focused rather than keyed to a single emergence. A Yellow Sally Adult in size 16 and a Chubby Chernobyl in size 10 cover the late-summer stonefly and terrestrial window that’s typical for this reach in early August.
Where to Fish: With the Middle Fork this low, target the deepest bend pools, undercut banks, and any shaded pocket water — that’s where trout stack up when the channel runs this thin. Approach from downstream and keep a low profile since skinny water spooks fish fast, and fish the cooler morning hours given the mid-80s highs forecast for the area.
Gear Tip: Start with a streamer rig in softer edges. Switch to a two-fly nymph rig and a yarn indicator as flows settle. A 9-foot 5X leader with light tippet keeps the rig natural in these flows.
Presentation: Start shallow, then add weight or depth as you move into deeper runs and pockets. Use longer drifts to cover tailouts and seam water.
Regulations: Standard WGFD fishing regulations apply. Valid fishing license required. See https://wgfd.wyo.gov/regulations.
3. North Platte River – Above Seminoe
Central Wyoming
The North Platte River is currently flowing at 158 cfs (normal) with a stable trend. Flows are fishable today. The Verdict: Excellent Conditions This week’s forecast shows temperatures ranging from 71-89°F. Calm winds make indicator nymphing more effective.
Insect Activity: This reach above Seminoe doesn’t have a dominant hatch showing in current reports, so a searching-pattern approach works best — a Caddis Larva or Soft Hackle Hare’s Ear in size 14-16 fished as an attractor nymph covers the water column well. With highs pushing toward 97°F this week, expect any surface activity to concentrate into the first couple hours of daylight.
Where to Fish: Flows are holding at 158 cfs in a 100-400 cfs range, so wading the riffles and softer runs is straightforward right now for the smaller 8-12 inch rainbows and browns typical of this stretch. Get on the water at first light both to catch the best feeding window and to beat the afternoon heat — this section runs hot, and an early start protects both you and the fish.
Gear Tip: Start with a streamer rig in softer edges. Switch to a two-fly nymph rig and a yarn indicator as flows settle. A 9-foot 5X leader with light tippet keeps the rig natural in these flows.
Presentation: Start shallow, then add weight or depth as you move into deeper runs and pockets. Use longer drifts to cover tailouts and seam water.
Regulations: North Platte River from Seminoe Reservoir upstream to Interstate 80: all legal methods permitted — this is NOT an artificial-only reach, and live baitfish…
4. Salt River
Northwest Wyoming
The Salt River is currently flowing at 328 cfs (normal) with a falling trend. Flows are fishable today. The Verdict: Excellent Conditions This week’s forecast shows temperatures ranging from 67-85°F. Calm winds make indicator nymphing more effective.
Insect Activity: No single hatch is dominating the Salt right now, so lean on a general searching lineup — a Yellow Sally Adult in size 16 up top over a Soft Hackle Hare’s Ear in size 14 covers the stonefly and general attractor bases anglers are reporting success with this time of year.
Where to Fish: At 328 cfs in a 150-550 cfs range, the Salt is fishing at a comfortable mid-level flow — work the seams and riffle edges with a two-fly nymph rig, and remember the artificial-flies-and-lures-only water from a quarter mile below the Highway 238 bridge down to the Diversion access, a reach worth targeting for less-pressured fish. With highs near 90°F, plan around the cooler morning hours.
Gear Tip: Start with a streamer rig in softer edges. Switch to a two-fly nymph rig and a yarn indicator as flows settle. A 9-foot 5X leader with light tippet keeps the rig natural in these flows.
Presentation: Start shallow, then add weight or depth as you move into deeper runs and pockets. Use longer drifts to cover tailouts and seam water.
Regulations: Artificial flies & lures only
5. Smiths Fork
Southwest Wyoming
The Smiths Fork is currently flowing at 103 cfs (normal) with a stable trend. Flows are fishable today. The Verdict: Excellent Conditions This week’s forecast shows temperatures ranging from 64-82°F. Calm winds make indicator nymphing more effective.
Insect Activity: Reports don’t show a specific hatch dominating the Smiths Fork this week, so a general late-summer lineup — a Morrish Hopper in size 10 up top with a Pat’s Rubber Legs in size 10 underneath — covers the terrestrial and stonefly patterns that produce here through early August.
Where to Fish: Flows are modest at 103 cfs against a 70-200 cfs range, making this intimate, technical water best suited to careful, upstream presentations. The upper river above the Hobble Creek confluence is artificial-flies-only water protecting native Bonneville cutthroat, while the lower stretch near the Bear River confluence is where the trophy-class browns show up — worth the extra hike if you’re after size.
Gear Tip: Start with a streamer rig in softer edges. Switch to a two-fly nymph rig and a yarn indicator as flows settle. A 9-foot 5X leader with light tippet keeps the rig natural in these flows.
Presentation: Start shallow, then add weight or depth as you move into deeper runs and pockets. Use longer drifts to cover tailouts and seam water.
Regulations: Artificial flies & lures only
Top 5 Wyoming Rivers This Week: Fishing Outlook
All five rivers featured above are fishing well with favorable conditions. Flow stability and active hatches make the top 5 Wyoming rivers this week the safest bets for consistent action. Bookmark this top 5 Wyoming rivers this week report for quick trip planning. Use live flow graphs to time your sessions. Use these notes to refine fly choice.
Conclusion
This top 5 Wyoming rivers this week report updates every week. Recheck flows the day you fish, use the river links above for the latest conditions, and review Wyoming fishing regulations before you go.
Have a recent fishing report or tips for these rivers?
We’d love to hear from you. Share your observations and help fellow anglers.
Tight lines!
— The FlyGuysNLies Team
Data sourced from FlyGuysNLies.com condition scoring system. Conditions can change rapidly, so check current data before your trip.
