Fishing Conditions: POOR

Report Rating: POOR
Crowd Rating: No one Around
No one Around

Fly Fishing Report Date:

Friday, Feb 10, 2017

Weather & Water Conditions

Weather Water
Temp: 52-55 Temp: 36-39
Sky: Clear Flow: 30
Wind: Gusting Clarity: Crystal Clear
Precip: None Runoff: No 

Colorado Stream Update: Concentrate your efforts on the stretch of river through Longmont.

Current Conditions at Saint Vrain:

The St. Vrain above Lyons is either iced over, depending on the day and weather you're up there, or just flat out isn't fishing well. The night time temperatures do not get as cold in Longmont as they do in higher elevations above Lyons, so naturally the river conditions are better through town. Small Wooly Buggers have been great at fooling fish through town when dead-drifted, as well as tandem nymph rigs with two small midges.

No need to be on the water early, wait for the sun to come up in order to warm up the water temperature. Use a long 9’ or 10’ rod to get the most control out of your nymph rig. The low and clear winter water makes for excellent sight fishing conditions.  The fishing is slow.  Clear skies and 52-55 degree weather. The water temperature was between 36-39 degrees and Crystal Clear.

Likely Catch

Species: Rainbow
Weight: 1 lbs 3 oz
Length: 14 inches
Girth: 5 inches
Rainbow Trout Female Rainbow Trout Female
Rainbow Trout Female Rainbow Trout Female

Current Insect Hatches at Saint Vrain


Recommended Flies for Saint Vrain

Fly: Wooly Bugger
Color: Black
Size: 12
Wooly Bugger Wooly Bugger
Fly: Jujubee Midge
Color: Purpleish Black
Size: 22
Jujubee Midge Jujubee Midge
Fly: Brassie
Color: Brown
Size: 20
Brassie Brassie

Colorado Hatch Conditions for Late February


Insects: Chocolate Brown Midge
Color: Brown to Chocolate
Dates: Feb 15 – Dec 15
Emergence: All Day
Size: 20-22
Spinner Fall: 2-3 Hours
Illustrations © The Flyfisher Group 
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: 47 °F Clear Wind: 4 MPH SW
Current Condtions


Temperature: 47 °F
Humidity: 27%
Wind: 4 mph SW
Pressure: 14.69 psi
Cloud Cover: 0%
Tuesday's Forecast
weather forecast: Sunny<br/> High: 62 °F  <br/>Low: 46 °F <br/> Wind: 19 mph W
High: 62 °F
Low: 46 °F
Wind: 19 mph W
Wednesday's Forecast
weather forecast: Sunny<br/> High: 59 °F  <br/>Low: 32 °F <br/> Wind: 14 mph WSW
High: 59 °F
Low: 32 °F
Wind: 14 mph WSW
Thursday's Forecast
weather forecast: Moderate snow<br/> High: 38 °F  <br/>Low: 20 °F <br/> Wind: 9 mph NNE
Moderate snow
High: 38 °F
Low: 20 °F
Wind: 9 mph NNE