Colorado Fly Fishing Reports - Courtesy of The Flyfisher Group


Fishing Conditions: GREAT

Report Rating: GREAT Crowd Rating: Not Crowded
Not Crowded

Fly Fishing Report Date:

Saturday, Sep 26, 2015

Colorado Stream Update: "Now that is how a day of dry-fly fishing is done!"

Current Conditions at Saint Vrain:

Fishing is great on the surface and just sub-suface. A single dry-dropper rig is all that is needed to bring a number of fish into the net. With the lower flows and warming water temperatures, this river is a ton of fun right now and should continue to fish well until temperatures really start to drop. Do yourself a favor and get out onto the Saint Vrain for a day of fun with a 3 weight.

The fly fishing has been great, good hatches of Blue Winged Olives and midges will excite and challenge all levels of anglers. The water is low and clear and fly fishing reports have been excellent. Use light tippet and longer leaders to avoid spooking fish. Use a light fly rod to make delicate presentations. A shorter three weight fly rod is the best tool for the job right now. The blue winged olive hatches are still bringing a lot of fish to the surface. The fly fishing has been fishing very well.  The fishing is great.  Clear skies and 60+ degree weather. The water temperature was between 48-51 degrees and Crystal Clear.

Weather & Water Conditions

Weather Water
Temp: 60+ Temp: 48-51
Sky: Clear Flow: 26
Wind: None Clarity: Crystal Clear
Precip: None Runoff: No 

Likely Catch

Species: Rainbow Rainbow Trout Female
Rainbow Trout Male
Weight: 0 lbs 11 oz
Length: 14 inches
Girth: 0 inches

Current Insect Hatches at Saint Vrain

Insect Type: Mayfly Late Pale Morning Dun (PMD) Emerger Illustration Late Pale Morning Dun (PMD) Nymph Illustration Late Pale Morning Dun (PMD) Adult Illustration
Insect: Late Pale Morning Dun (PMD)
Size: 20

Recommended Flies for Saint Vrain

Fly: Stimulator Stimulator
Size: 18
Time: All Day
Fly: Pheasant Tail Pheasant Tail
Size: 20
Time: All Day
Fly: Biot Midge Biot Midge
Size: 24
Time: All Day

Colorado Hatch Conditions for Early October

Insects Color Dates Emergence Size Spinner Fall Illustrations
© The Flyfisher Group


Micro Caddis Yellow, Orange or Brown Jun 15 -
Oct 15
Sporadic 20-22 NA
Micro Caddis Larva illustration Micro Caddis Emerger illustration Micro Caddis Adult illustration
October Caddis Orange Tan to Grayish Black Sep 1 -
Oct 30
Shallows, Afternoon & Evening 8-10 NA
October Caddis Larva illustration October Caddis Emerger illustration October Caddis Adult illustration


Blue Winged Olive Light Olive Brown to Brown Olive Mar 1 -
Nov 15
Clouds & warmest part of day 16-18 Evening
Blue Winged Olive Nymph illustration Blue Winged Olive Emerger illustration Blue Winged Olive Adult illustration
Gray Drake Gray Jun 1 -
Nov 30
Late Morning 14-16 Evening
Gray Drake Nymph illustration Gray Drake Emerger illustration Gray Drake Adult illustration
Mahogany Dun Reddish Brown to Blackish Brown Sep 1 -
Oct 31
Early Afternoon 16-18 Late Evening
Mahogany Dun Nymph illustration Mahogany Dun Emerger illustration Mahogany Dun Adult illustration
Micro Blue Winged Olive (BWO) Pale Olive Green to Blue Gray Jun 1 -
Nov 30
Clouds & warmest part of day 22-26 Evening
Micro Blue Winged Olive (BWO) Nymph illustration Micro Blue Winged Olive (BWO) Emerger illustration Micro Blue Winged Olive (BWO) Adult illustration


Black Midge Blackish to Black Apr 1 -
Nov 15
All Day 18-20 2-3 Hours
Black Midge Larva illustration Black Midge Emerger illustration Black Midge Adult illustration
Chocolate Brown Midge Brown to Chocolate Feb 15 -
Dec 15
All Day 20-22 2-3 Hours
Chocolate Brown Midge Larva illustration Chocolate Brown Midge Emerger illustration Chocolate Brown Midge Adult illustration
Micro Black Midge Blackish to Black Mar 1 -
Nov 15
Morning 22-26 2-3 Hours
Micro Black Midge Larva illustration Micro Black Midge Emerger illustration Micro Black Midge Adult illustration
Snow Midge Gray to Charcoal Jan 1 -
Dec 31
Warmest part of day 24-28 2-3 Hours
Snow Midge Larva illustration Snow Midge Emerger illustration Snow Midge Adult illustration


September Stone Reddish Brown with Orange belly Aug 15 -
Oct 31
Early Afternoon to Evening 4-10 NA
September Stone Nymph illustration September Stone Adult illustration


Beetle Brownish to Black May 1 -
Nov 30
All Day 10-18 NA
Beetle  illustration
Black Ant Black May 1 -
Nov 15
All Day 20-24 NA
Black Ant  illustration
Cricket Brownish Olive to Black Jun 1 -
Nov 30
Twilight & Dusk 8-16 NA
Cricket  illustration
Grasshopper Green to Brownish Tan May 15 -
Nov 15
All Day 2-14 NA
Grasshopper  illustration Grasshopper  illustration
Red Ant Red to Orangish May 1 -
Oct 15
All Day 18-22 NA
Red Ant  illustration

Weather for Saint Vrain

Current: 60 °F    Clear     Wind: 4 MPH W
Current Condtions

Temperature: 60 °F
Humidity: 66%
Wind: 4 mph W
Pressure: 14.87 psi
Cloud Cover: 0%

Friday's Forecast
weather forecastOvercast
High: 65 °F
Low: 53 °F
Wind: 5 mph SE
Saturday's Forecast
weather forecastSunny
High: 84 °F
Low: 55 °F
Wind: 11 mph W
Sunday's Forecast
weather forecastSunny
High: 80 °F
Low: 44 °F
Wind: 15 mph WNW

Archived Fishing Reports for Saint Vrain