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Keyhole Reservoir
Mon Sep 21 – Thu Sep 24, 2026 · Bank / Kayak / Boat · Primary: Walleye
NE WY — walleye primary.
Midweek outlook
Times in this Cast are Mountain Time (MT).
Mon 09-21
63°/52°Rain
Wind to 17 mph · precip 7%
Tue 09-22
73°/53°Overcast
Wind to 20 mph · precip 3%
Wed 09-23
77°/58°Overcast
Wind to 18 mph · precip 9%
Thu 09-24
78°/60°Overcast
Wind to 14 mph · precip 2%
Dam / level / current cheat sheet
Keyhole Dam levels.
How to fish it — Bank / Kayak / Boat
Bank
State park banks.
Kayak
Coves when windy.
Boat
Points and creek channels.
Pattern: Walleye lead on points/channels.
Ethanol-free fuel near this water
Moorcroft / Sundance — Pure-Gas.org; verify E0 at pump. Prices move — verify at pump. Pure-Gas is crowdsourced.
Lure box — Top / Mid / Bottom
Built for Walleye (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: Perch, crayfish
Also hot / also in season
Bass, perch, pike
Looking ahead
Fall transition continues next 1–3 weeks. Re-check tournaments for Heavy Traffic. Shared waters: one writer/cycle.