Deckers, Colorado

South Platte River Fishing Report

South Platte River | Deckers, Colorado | Updated Apr 24, 2026, 8:12 AM MDT | Station: South Platte River at Deckers

Fish the slow seams with a shallow, technical nymph rig first, then adjust toward emergers or a small dry only if you see steady noses.

Open in BugginFull Forecast

Today's Read

South Platte trout near Deckers feed often but slide into technical behavior fast when flows are clear and stable. Expect fish to hold in the slower seam off the main tongue, on inside shelves, and in buckets where current drops just enough to let them inspect food. They will eat midges and small mayflies all day, but the more visible surface activity usually stays concentrated in specific slicks rather than spreading river-wide.

Bugs & Best Matches

What's active
Fish this
Midges, size 20-24, all day with strongest windows early and late
Top Secret Midge, size 20-24, nymph; RS2 olive or gray, size 20-22, emerger
Blue-winged olives, size 18-22, late morning through afternoon
BWO Barr Emerger, size 18-20, nymph
Caddis prep and pupa activity, size 14-16, sporadic warm afternoons
Chocolate Foam Wing Emerger, size 20-22, emerger
General subsurface
Parachute Adams, size 20-22, dry; Black Beauty, size 20-24, nymph

What Is Driving The Feed

  • Midges, size 20-24, all day with strongest windows early and late
  • Blue-winged olives, size 18-22, late morning through afternoon
  • Caddis prep and pupa activity, size 14-16, sporadic warm afternoons

Current Conditions

FlowModerate spring flows usually keep the Deckers water wadeable while still giving fish cover.
Water TempLow-fifties water is enough for consistent feeding, but not enough to make fish reckless.
WeatherOvercast gives you more flexibility. Bright afternoons usually make the river more technical.
Rating7/10