North Platte River Fishing Forecast
The North Platte River in Wyoming behaves like a classic tailwater: cold, predictable releases that stretch the trout season when freestone neighbors run warm or muddy. Anglers target rainbow trout, brown trout, and cutthroat trout across riffles, seams, and undercut banks in this region, with prime dry-fly and nymph windows typically clustering in April through October. USGS gauge 06642000 tracks live flow and temperature for planning wade or float days. Local tactics angle: The North Platte River in Wyoming offers two world-class tailwater sections - the Miracle Mile and Grey Reef - producing trophy rainbow, brown, and cutthroat trout. TroutFishing pairs hatch timing with solunar windows so you know when to be on the water—not just where.
Constant 57°F water flows out of the bottom-release dam and into the North Platte River at 2360 CFS CFS. Expect a 6/10 window. Top pick: a Parachute Adams.
Open year-round
Below dams: open year-round, fishable all winter. Gray Reef: flies/lures only to Government Bridge. CLOSED Apr 1-May 15 at Gray Reef for rainbow spawn (new 2026)
Forecast and on-page guide updated September 9, 2026 (UTC). Open the app for hourly conditions.
Today's Fishing Conditions
Good
Updated 7:36 PM
57°F
2360 CFS
5 AM - 7 AM
Parachute Adams
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What Makes the North Platte River Unique?
Signature hatch or window
BWO (Mayfly) is a headline hatch to watch in September. Peak activity often tracks 42–55°F water temps.
Distinctive access
Miracle Mile: Famous tailwater section.
Rules anglers miss
Miracle Mile and Grey Reef have special rules.
Optimal Fishing Conditions
Optimal Flow
500 - 1500 CFS
Best fishing conditions
Optimal Water Temperature
48° - 58°F
Ideal for active trout
Quick Facts
Rainbow Trout, Brown Trout, and Cutthroat Trout
tailwater
48°F - 56°F
September Hatches
BWO
Mayfly
Year-round tailwater BWO. Spring and fall most reliable. Overcast prime.
Trico
Mayfly
Early morning spinner falls. Technical tailwater fishing.
Scud
Crustacean
Year-round scud fishing. Pink, gray, olive. Primary food source.
San Juan Worms
Aquatic Worm
Always productive. Red, pink, brown worms.
Caddis
Caddis
Evening caddis. Wind often makes dry fly difficult.
September Fishing Tactics
Primary Targets
Recommended Tactics
Fall BWOs return. Excellent dry fly.
Year-Round Fishing Guide
| Month | Water Temp | Tactics |
|---|---|---|
| January | 38-45°F | Midges, BWOs, Scuds, Sowbugs |
| February | 38-46°F | Midges, BWOs, Scuds |
| March | 40-48°F | BWOs, Midges, Early PMDs |
| April | 42-50°F | BWOs, Midges, PMD nymphs |
| May | 45-52°F | BWOs, PMDs, Caddis |
| June | 48-55°F | PMDs, Caddis, Tricos starting |
| July | 50-58°F | PMDs, Tricos, Caddis |
| August | 50-60°F | Tricos, PMDs, Hoppers |
| September(Now) | 48-56°F | BWOs, Tricos, Streamers |
| October | 45-52°F | BWOs, Midges, Streamers |
| November | 42-48°F | BWOs, Midges, Scuds |
| December | 38-45°F | Midges, BWOs, Scuds, Sowbugs |
Recommended Equipment for North Platte River
Rod
9-foot, 5 or 6-weight. 7-weight for streamers.
Line
Floating for dries. Sink-tip for streamers.
Leader & Tippet
9-12 foot leaders, 5X-6X tippet.
Waders
Breathable waders. Cold water year-round.
Essential Flies
How to Fish North Platte River: Tips & Tactics
The North Platte River in Wyoming offers two world-class tailwater sections - the Miracle Mile and Grey Reef - producing trophy rainbow, brown, and cutthroat trout.
Best Times of Day
Year-round fishing is excellent due to dam releases. The Trico hatch in summer brings technical dry fly fishing. Fall is trophy season.
Recommended Techniques
Match the prolific hatches. Sight fishing in the clear water. Streamers produce trophy fish. The tailwaters demand technique.
Water Conditions
Cold dam releases create exceptional conditions. Fish counts are among the highest in the region. Wind is common.
Fly Selection
Scuds and sowbugs year-round. Trico patterns essential in summer. BWO and PMD for mayflies. Streamers for trophies.
When is the Best Time to Fish North Platte River?
Spring
Excellent fishing. BWO hatches.
Summer
Trico hatches bring technical fishing.
Fall
Trophy season. Browns become aggressive.
Winter
Year-round tailwater stays productive.
Access Points & Parking for North Platte River
Miracle Mile
Famous tailwater section.
Grey Reef
Premier tailwater access.
Alcova
Access near the reservoir.
Casper
Urban access through the city.
Spawning Seasons
Please respect spawning fish and their redds. Avoid fishing over actively spawning trout.
Brown Trout
Spawn months: October, November
Night spawning common. Males become very dark with pronounced kype during spawn.
Rainbow Trout
Spawn months: March, April
Resident rainbow trout spawn in smaller tributaries and tend to build smaller redds than steelhead.
Cutthroat Trout
Spawn months: May, June, July
Spring spawners. Timing varies by subspecies and elevation - coastal populations spawn earlier (Feb-Mar), inland populations later (May-July). Eggs develop for 6-7 weeks before hatching.
North Platte River Fishing Regulations
Season
Open year-round.
Limits
Check Wyoming Game and Fish for tailwater regulations.
Special Regulations
Miracle Mile and Grey Reef have special rules.
Bait Restrictions
Artificial flies and lures only.
Notes
World-class tailwater fishing.
Always verify current regulations with Wyoming fish and wildlife agency before fishing. Regulations can change annually.
Fly Shops & Guides Near North Platte River
Local Fly Shops
- Platte River Fly Shop - Casper
- Ugly Bug Fly Shop
- North Platte Lodge
Guide Services
- Platte River Guides
- Grey Reef Anglers
- Wyoming Fly Fishing
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Snake River
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North Platte River — frequently asked questions
When is the best time to fish the North Platte River?
Fall BWOs return. Excellent dry fly.
What flies should I bring to the North Platte River?
For the North Platte River (tailwater), carry: Scud, Trico, BWO, San Juan Worm, Woolly Bugger.
What water temperature is best for trout on the North Platte River?
On the North Platte River, trout hold between 48° and 58°F. Because the river is dam-fed, the temperature stays in this band year-round.
Do I need a fishing license for the North Platte River?
Yes — you need a valid Wyoming fishing license to fish the North Platte River. Local season: Open year-round.. Daily limit: Check Wyoming Game and Fish for tailwater regulations..
What hatches should I watch for on the North Platte River in September?
BWO is the signature hatch on the North Platte River in September. Match size and adjust leader size to 5X-6X. The fish key in on the emergence during low-light hours, so plan to be on the water at first light.
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