Aug 21, 2025

Yellowstone River Fishing Report
CFS: 1580
TEMP: 60-66°

Thankfully we a bit of a heat reprieve this weekend with some showers and cooler temps.  Next week looks like we bump back up into the 90's. Surprisingly the fish have been eating hoppers well on the hotter days last week, (we actually had better reports in the afternoon than the morning). 

Now that there has been a little more high haze in the air from fires, peach and pink hoppers are often best.  Try a mix of sizes from 8-14 depending on if you want to support a tungsten nymph, or if you want to fish just a single smaller hopper. Floating ants patterns have been working well too, especially in the Valley.  

Give us a call for more info or to book a trip!  1-406-222-7130.

Jackson Bruff with a solid bow!  Photo: Guy Thomas

Nice Cutthroat Sarah!  Photo: Guy Thomas

Fly Patterns: 

Purple Bruce #8-12
Morrish Hoppers #6-14
Grand Hopper #8-12
Sweetgrass Hopper #8-10
Thunderthighs Hopper #8-14
Thundergrass Hopper #18-14
Fancypants Hopper #8-114
Elk Hair Caddis #14-18
Butch Caddis #14-16
Missing Link Caddis #14-16

Rubber Legs (black) sizes #4-6
Rubber Legs (black and coffee) sizes #4-6
Tung. Bead Bugger Legs (black and coffee) size #6
Tung. Bead Bugger CAMO (black and coffee) size #6
Yellow Spot Sally #14-16
Bead Head Prince sizes #8-10
Various Euro nymphs sizes #12-14
Blow Torch Black #12-18
Duracell Bomb Brown #12-16
Torch Light #14-16
Little Spankers #14-18

Black Leadeye streamer sizes #4-6
Yellow Silk Kitty sizes #2
Black or Olive Sex Dungeon sizes #4-6
Coffee Sparkle Minnow #4-6
Slick Willie (various colors sizes #1/0, 4)
Lawson's Sculpin Black sizes #2-4
Kill Whitey Olive/Black #4
Lawson's Olive Black sizes #2-4

Real Time River Flows