Natrona County
North Platte River — Grey Reef
Live Conditions
North Platte River — Grey Reef — Grey Reef (Tailwater)
7-Day Flow
→ Stable
24-Hr Pressure
24.4 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☁️Overcast
76° / 55°
Tomorrow
☁️Overcast
71° / 52°
Fri
🌦️Drizzle
77° / 54°
0.03"
Sat
☁️Overcast
72° / 53°
Cold front incoming — go deep with nymphs, surface activity likely slow.
Weather by Open-Meteo · No API key · Updated every 30 min
What should I fish today?
⚡ AIAI-powered recommendation using today's live flow, temperature, and hatch data.
2
Time of Day
Using: 316 CFS · 61.9°F · BWOs returning
What should I pack?
Rod, flies, tippet, and safety gear specific to today's North Platte River — Grey Reef conditions.
🪰 Hatch Calendar
North Platte River — Grey Reef · September · Early Fall
🟢 Active now at 61.9°F water
🟡 Approaching — within 5°F of trigger range
Select month
BWOs returning (size 18-20). PMDs tapering. Hoppers still effective. Outstanding fall fishing — fewer crowds after Labor Day, fish keying on dries.
🟢 Active · 🟡 Approaching · ⚪ Seasonal only
River Map
About North Platte River — Grey Reef
World-class tailwater below Grey Reef Reservoir, one of Wyoming's top trophy fisheries. Consistent midge and streamer fishing year-round.
Regulations
Catch-and-release only on the Gold Medal section below Grey Reef Dam; artificial lures only in designated stretches. Wyoming Game & Fish license required. Verify current regs at wgfd.wyo.gov before fishing.
Learn More
Guides to help you fish North Platte River — Grey Reef with more confidence.
Trout Species of Wyoming — A Fly Angler's Field Guide
Wyoming holds native Cutthroat subspecies found nowhere else on Earth. How to identify Snake River Finespotted, Yellowstone, and Colorado River…
Wyoming Fishing Regulations for Fly Anglers
Licenses, the Conservation Stamp, year-round seasons, no trout stamp, and the river-specific rules that matter on the Grey Reef, Snake, and Bighorn.
How Barometric Pressure Affects Fishing (And How to Use It)
That gorgeous bluebird day after a cold front? Worst fishing of the year. Here's the data behind why pressure changes matter more than the weather…