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Grayrocks Reservoir
Mon Sep 21 – Thu Sep 24, 2026 · Bank / Kayak / Boat · Primary: Largemouth & smallmouth bass
WY bass headline water.
Midweek outlook
Times in this Cast are Mountain Time (MT).
Mon 09-21
70°/48°Partly cloudy
Wind to 11 mph · precip 1%
Tue 09-22
84°/50°Overcast
Wind to 15 mph · precip 12%
Wed 09-23
81°/64°Overcast
Wind to 10 mph · precip 12%
Thu 09-24
78°/60°Overcast
Wind to 17 mph · precip 4%
Dam / level / current cheat sheet
Grayrocks Dam — confirm levels.
How to fish it — Bank / Kayak / Boat
Bank
WGFD access — riprap/points.
Kayak
Protected arms when windy.
Boat
Main-lake points; wind rules.
Pattern: Rock, points, weeds; topwater early.
Ethanol-free fuel near this water
Wheatland — Pure-Gas.org; verify E0 at pump. Prices move — verify at pump. Pure-Gas is crowdsourced.
Lure box — Top / Mid / Bottom
Built for Largemouth & smallmouth bass (species-honest).
Top
Walking bait / popper when bait is up.
Mid
Swimbaits, cranks, spinnerbaits, or spoons by depth.
Bottom
Jigs, Ned/rigs, drop-shots; live/dead bait where legal for walleye/trout.
Life stage + What's on the menu
Stage: Mid/late September transition.
Menu: Shad, bluegill, crayfish
Also hot / also in season
Walleye, catfish, perch
Looking ahead
Fall transition continues next 1–3 weeks. Re-check tournaments for Heavy Traffic. Shared waters: one writer/cycle.