Fishing Conditions: FAIR

Report Rating: FAIR
Crowd Rating: Not Crowded
Not Crowded

Fly Fishing Report Date:

Friday, Jan 6, 2017

Weather & Water Conditions

Weather Water
Temp: 20-23 Temp: 32-35
Sky: Clear Flow: 22
Wind: None Clarity: Slightly Off
Precip: None Runoff: No 

Colorado Stream Update: The St. Vrain is flowing at 22 CFS at Lyons, Colorado and winter fishing has been fair on the warm and sunny days but colder temps are making for less open seater and challenging fishing.

Current Conditions at Saint Vrain:

The St. Vrain at Lyons can be a decent winter fishery on Colorado's Front Range. Look for the fish to be on midges and micro mayflies. Nymph fishing is the name of the game with 7.5 foot leaders and 5x-7x tippets. Look for fish to be actively feeding during the warmest parts of the day. Decent dry fly fishing can be found occasionally along The St. Vrain during the winter, with blanket midge hatches. Brooks Sprout midges and Parachute Adams size 20-24 have been producing strikes.

The fishing is fair.  Clear skies and 20-23 degree weather. The water temperature was between 32-35 degrees and Slightly Off.

Likely Catch

Species: Brown
Weight: 0 lbs 13 oz
Length: 12 inches
Girth: 5 inches
Brown Trout Female Brown Trout Female
Brown Trout Female Brown Trout Female

Current Insect Hatches at Saint Vrain

Insect Type: Midge

Insect: Micro Black Midge

Color: Blackish Purple

Size: 24

Time: AM

Insect Type: Midge

Insect: Black Midge

Color: Black

Size: 22

Time: AM

Insect Type: Midge

Insect: Chocolate Brown Midge

Color: Chocolate

Size: 22

Time: PM

Recommended Flies for Saint Vrain

Fly: Sprout Midge
Color: Black
Size: 22
Time: All Day
Sprout Midge Sprout Midge
Fly: Disco Midge
Color: Olive
Size: 20
Time: All Day
Disco Midge Disco Midge
Fly: Dorsey's Top Secret Midge
Color: Chocolate
Size: 24
Time: All Day
Dorsey's Top Secret Midge Dorsey's Top Secret Midge

Colorado Hatch Conditions for Late January


Insects: Snow Midge
Color: Gray to Charcoal
Dates: Jan 1 – Dec 31
Emergence: Warmest part of day
Size: 24-28
Spinner Fall: 2-3 Hours
Illustrations © The Flyfisher Group 


Insects: Micro Black
Color: Dark Brown to Black
Dates: Jan 1 – May 15
Emergence: 38-44° Water Temps Heat of Day
Size: 18-22
Spinner Fall: NA
Illustrations © The Flyfisher Group 

Weather for Saint Vrain

Current: 43 °F Sunny Wind: 0 MPH N
Current Condtions


Temperature: 43 °F
Humidity: 50%
Wind: 0 mph N
Pressure: 14.55 psi
Cloud Cover: 0%
Thursday's Forecast
weather forecast: Sunny<br/> High: 47 °F  <br/>Low: 29 °F <br/> Wind: 8 mph W
High: 47 °F
Low: 29 °F
Wind: 8 mph W
Friday's Forecast
weather forecast: Cloudy<br/> High: 41 °F  <br/>Low: 22 °F <br/> Wind: 2 mph SSW
High: 41 °F
Low: 22 °F
Wind: 2 mph SSW
Saturday's Forecast
weather forecast: Sunny<br/> High: 40 °F  <br/>Low: 23 °F <br/> Wind: 3 mph SSE
High: 40 °F
Low: 23 °F
Wind: 3 mph SSE