Sit it outno rainbow trout window clears the bar in 36 hours
Each float is an hour. The deeper it rides, the better the bite. The strip underneath runs daylight, dusk and dark; the red rule marks the best window. Click any hour to read it.
Right now
Rainbow trout range 45–68°
From the north-northeast
Sunrise 7:32 am
9% chance of rain
NWS hourly forecast
Measured, last 3 hours
Full
Each species is scored against its own water-temperature range and tide preference, then wind, weather and warnings. The rules are Wyoming non-tidal regulations for these waters.
No water reading here right now. Rainbow trout bite in 45–68° water, best near 55°.
Light chop — baitfish active, fish willing to feed. Holds 3–20 ft down.
Open. Keep fish within the limits. Wyoming streams: 3 trout a day, only 1 over 16"; no more than 6 across streams and lakes combined. Brook trout, lake trout and splake have separate limits. Open all year.
Verified Oct 23, 2026 · Wyoming non-tidal
No water reading here right now. Cutthroat trout bite in 39–62° water, best near 54°.
Light chop — baitfish active, fish willing to feed. Holds 1–25 ft down.
Open. Keep fish within the limits. Wyoming streams: 3 trout a day, only 1 over 16"; no more than 6 across streams and lakes combined. Brook trout, lake trout and splake have separate limits. Open all year.
Verified Oct 23, 2026 · Wyoming non-tidal
Season here: Sep–Jun. More on cutthroat trout
No water reading here right now. Brown trout bite in 45–68° water, best near 55°.
Light chop — baitfish active, fish willing to feed. Brown trout feeds less actively under bright moon. Holds 3–25 ft down.
Open. Keep fish within the limits. Wyoming streams: 3 trout a day, only 1 over 16"; no more than 6 across streams and lakes combined. Brook trout, lake trout and splake have separate limits. Open all year.
Verified Oct 23, 2026 · Wyoming non-tidal
Solunar tables are a popular heuristic. A peer-reviewed test found they don’t predict catch on their own, so here they only nudge the score when the tide or moon already agree. How the score works
We only show reports an agency has published, with their date. Wyoming Game & Fish has the state’s fishing pages.
Licenses and rules: Wyoming Game & Fish · trout stocking · fish-consumption advisories
The trophy tailwater below Grey Reef Dam southwest of Casper — one of the highest-density big-trout fisheries in the Rockies. Cold, steady releases grow thick-bodied rainbow and brown trout averaging well over a foot; the Grey Reef, Lusby, and Government Bridge accesses are floated and waded hard year-round.
Gray Reef Dam to the WY 220 bridge: 1 trout a day, 20" minimum, single-point barbless flies and lures only. The water between the gauge cable crossings below the dam and from Ledge Creek to S Gulch closes Apr 1–May 15. The Miracle Mile upstream is barbless-only under the standard 3-trout stream limit.
The closest public spots we cover, with the same 36 hours of floats.
Yes (anglers age 16 and older). To fish at North Platte River (Grey Reef) you need the appropriate state fishing license. See the agency's current rules: the state agency website
North Platte River (Grey Reef) is listed on this site for 3 commonly-targeted species: Rainbow Trout, Brown Trout, Cutthroat Trout. Which species is currently in season and which is scoring highest today is shown in the per-species ranking on this page.
It depends more on the species and the day's conditions than on a fixed "best hour." Water temperature, weather, and — at tidal locations — the stage of the tide drive activity most. The per-species ranking on this page scores every target species at North Platte River (Grey Reef) against today's live conditions, so the fish near the top are your best bets right now; check back as conditions change through the day.
North Platte River (Grey Reef) has multiple access types — pier, shoreline, and at least one public boat ramp. Gray Reef Dam to the WY 220 bridge: 1 trout a day, 20" minimum, single-point barbless flies and lures only. The water between the gauge cable crossings below the dam and from Ledge Creek to S Gulch closes Apr 1–May 15. The Miracle Mile upstream is barbless-only under the standard 3-trout stream limit.
state agency regulations apply at North Platte River (Grey Reef). Size limits, creel limits, and seasonal closures are listed per species on each species page. Always confirm against the agency source linked from each regulation block — emergency closures can take effect mid-season.
No. North Platte River (Grey Reef) is non-tidal — water level varies with rainfall, seasonal flow, and (where applicable) upstream dam releases rather than tidal exchange.
Press / anywhere to search. Towns list the closest spots.
