Fishing Conditions: GOOD

Report Rating: GOOD
Crowd Rating: Somewhat Crowded
Somewhat Crowded

Fly Fishing Report Date:

Tuesday, Jul 9, 2019

Weather & Water Conditions

Weather Water
Temp: 60+ Temp: 44-47
Sky: Clear Flow: 350
Wind: None Clarity: Slightly Off
Precip: None Runoff: Yes 
(All Day)

Colorado Stream Update: Summer has set in, and fishing has been picking up

Current Conditions at Boulder Creek:

Boulder creek has been on a downward trend, although recent storms have brought a bump in flows. The river is still flowing somewhat fast, so expect fish to be holding in current breaks, and softer water. A dry-dropper combo has been producing some nice fish. Caddis nymphs, worms, and hare's ears have all been on the menu. Small olive streamers have also found some nice fish in the morning and evenings. When fishing a hopper dropper be sure to check the length of your dropper, remember that depth is important when feeding fish subsurface.

Our local creeks provide the dry fly angler with amplitude of opportunity close to Denver and Boulder! It is wet wading season bring your shorts and wading boots!  The fishing is good.  Clear skies and 60+ degree weather. The water temperature was between 44-47 degrees and Slightly Off.

Angling University: Up your game.
The Flyfisher Guide Service
The Colorado Trout Fisher Guide Service
Colorado Fly Fishing Trips with
Colorado Trout Fisher
Denver and Boulder Fly Fishing Guides
Colorado Trout Fisher logo

BOOK A TRIP

Trip Includes:
  • Flies and fishing tackle
  • Rods/reels
  • Waders
  • Lunch
  • Transportation
$225 for 1 or 2 people
$295 for 3 people
Angling University: Anyone can learn to fish.
The Flyfisher Guide Service: Get out and fish.

Likely Catch

Species: Brown
Weight: 2 lbs 0 oz
Length: 16 inches
Girth: 7 inches
Brown Trout Female Brown Trout Female
Brown Trout Male Brown Trout Male

Current Insect Hatches at Boulder Creek

Insect Type: Caddisfly

Insect: Little Plain Brown Sedge

Color: Brown

Size: 16

Time: PM

Little Plain Brown Sedge Larva Illustration
Little Plain Brown Sedge Emerger Illustration
Little Plain Brown Sedge Adult Illustration

Recommended Flies for Boulder Creek

Fly: Amy's Ant
Color: Olive
Size: 14
Time: All Day
Amy's Ant Amy's Ant
Fly: Soft Hackle Pheasant Tail
Color: Brown
Size: 16
Time: All Day
Soft Hackle Pheasant Tail Soft Hackle Pheasant Tail
Fly: Juju Baetis
Color: Olive
Size: 18
Time: All Day
Juju Baetis Juju Baetis

Colorado Hatch Conditions for Late July

Caddisflies
Insects: Green Sedge
Color: Olive to Gray Brown
Dates: Jul 15 – Sep 30
Emergence: Morning & Afternoon
Size: 12-14
Spinner Fall: NA
Green Sedge Larva illustration
Green Sedge Emerger illustration
Green Sedge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Little Black Sedge
Color: Chocolate to Black
Dates: Jul 15 – Sep 30
Emergence: Sporadic
Size: 16-18
Spinner Fall: NA
Little Black Sedge Larva illustration
Little Black Sedge Emerger illustration
Little Black Sedge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Little Plain Brown Sedge
Color: Brown to Chocolate
Dates: Jun 15 – Aug 30
Emergence: Sporadic
Size: 14-16
Spinner Fall: NA
Little Plain Brown Sedge Larva illustration
Little Plain Brown Sedge Emerger illustration
Little Plain Brown Sedge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Little Sister Sedge
Color: Green to Greenish Brown
Dates: May 15 – Aug 30
Emergence: Afternoon & Evening
Size: 14-16
Spinner Fall: NA
Little Sister Sedge Larva illustration
Little Sister Sedge Emerger illustration
Little Sister Sedge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Little Tan Short Horn Sedge
Color: Dark Brown to Yellow
Dates: Mar 1 – Aug 30
Emergence: Sporadic
Size: 14-16
Spinner Fall: NA
Little Tan Short Horn Sedge Larva illustration
Little Tan Short Horn Sedge Emerger illustration
Little Tan Short Horn Sedge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Little Western Dark Sedge
Color: Dark Brown
Dates: Jun 1 – Aug 15
Emergence: Mid Day
Size: 16-18
Spinner Fall: NA
Little Western Dark Sedge Larva illustration
Little Western Dark Sedge Emerger illustration
Little Western Dark Sedge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Micro Caddis
Color: Yellow, Orange or Brown
Dates: Jun 15 – Oct 15
Emergence: Sporadic
Size: 20-22
Spinner Fall: NA
Micro Caddis Larva illustration
Micro Caddis Emerger illustration
Micro Caddis Adult illustration
Illustrations © The Flyfisher Group 
Insects: Spotted Sedge
Color: Brownish Yellow
Dates: May 15 – Sep 30
Emergence: Sporadic
Size: 10-12
Spinner Fall: NA
Spotted Sedge Larva illustration
Spotted Sedge Emerger illustration
Spotted Sedge Adult illustration
Illustrations © The Flyfisher Group 

Mayflies
Insects: Blue Winged Olive
Color: Light Olive Brown to Brown Olive
Dates: Mar 1 – Nov 15
Emergence: Clouds & warmest part of day
Size: 16-18
Spinner Fall: Evening
Blue Winged Olive Nymph illustration
Blue Winged Olive Emerger illustration
Blue Winged Olive Adult illustration
Illustrations © The Flyfisher Group 
Insects: Callibaetis Speckled Dun
Color: Tannish Olive to Olive Gray
Dates: Jun 1 – Aug 30
Emergence: Cloudy, Late Morning
Size: 14-16
Spinner Fall: Late Afternoon
Callibaetis Speckled Dun Nymph illustration
Callibaetis Speckled Dun Emerger illustration
Callibaetis Speckled Dun Adult illustration
Illustrations © The Flyfisher Group 
Insects: Early Pale Morning Dun (PMD)
Color: Olivish Yellow to Yellowish Pink
Dates: Jun 1 – Sep 15
Emergence: Mid Morning to Early Afternoon
Size: 16-22
Spinner Fall: Late Evening
Early Pale Morning Dun (PMD) Nymph illustration
Early Pale Morning Dun (PMD) Emerger illustration
Early Pale Morning Dun (PMD) Adult illustration
Illustrations © The Flyfisher Group 
Insects: Ginger Quill
Color: Pale Cream to Whitish
Dates: Jul 1 – Sep 15
Emergence: Morning
Size: 14-16
Spinner Fall: Evening
Ginger Quill Nymph illustration
Ginger Quill Emerger illustration
Ginger Quill Adult illustration
Illustrations © The Flyfisher Group 
Insects: Gray Drake
Color: Gray
Dates: Jun 1 – Nov 30
Emergence: Late Morning
Size: 14-16
Spinner Fall: Evening
Gray Drake Nymph illustration
Gray Drake Emerger illustration
Gray Drake Adult illustration
Illustrations © The Flyfisher Group 
Insects: Iron Blue Quill
Color: Light Olive Tan to Blue Gray
Dates: Jun 1 – Aug 15
Emergence: Warmest part of day
Size: 20-22
Spinner Fall: Evening
Iron Blue Quill Nymph illustration
Iron Blue Quill Emerger illustration
Iron Blue Quill Adult illustration
Illustrations © The Flyfisher Group 
Insects: Micro Blue Winged Olive (BWO)
Color: Pale Olive Green to Blue Gray
Dates: Jun 1 – Nov 30
Emergence: Clouds & warmest part of day
Size: 22-26
Spinner Fall: Evening
Micro Blue Winged Olive (BWO) Nymph illustration
Micro Blue Winged Olive (BWO) Emerger illustration
Micro Blue Winged Olive (BWO) Adult illustration
Illustrations © The Flyfisher Group 
Insects: Red Quill
Color: Reddish Brown
Dates: Jun 15 – Sep 30
Emergence: Mid Morning
Size: 14-16
Spinner Fall: Evening
Red Quill Nymph illustration
Red Quill Emerger illustration
Red Quill Adult illustration
Illustrations © The Flyfisher Group 
Insects: Slate Winged Drake
Color: Brown to Slate Gray
Dates: Jun 15 – Aug 1
Emergence: Early Afternoon
Size: 16-12
Spinner Fall: Evening
Slate Winged Drake Nymph illustration
Slate Winged Drake Emerger illustration
Slate Winged Drake Adult illustration
Illustrations © The Flyfisher Group 
Insects: Trico
Color: Black
Dates: Jul 15 – Sep 15
Emergence: Morning
Size: 22-26
Spinner Fall: Early Afternoon
Trico Nymph illustration
Trico Emerger illustration
Trico Adult illustration
Illustrations © The Flyfisher Group 
Insects: Western Green Drake
Color: Dark Olive
Dates: Jun 1 – Aug 1
Emergence: Cloudy, 1-4 pm
Size: 8-12
Spinner Fall: Evening
Western Green Drake Nymph illustration
Western Green Drake Emerger illustration
Western Green Drake Adult illustration
Illustrations © The Flyfisher Group 

Midges
Insects: Black Midge
Color: Blackish to Black
Dates: Apr 1 – Nov 15
Emergence: All Day
Size: 18-20
Spinner Fall: 2-3 Hours
Black Midge Larva illustration
Black Midge Emerger illustration
Black Midge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Chocolate Brown Midge
Color: Brown to Chocolate
Dates: Feb 15 – Dec 15
Emergence: All Day
Size: 20-22
Spinner Fall: 2-3 Hours
Chocolate Brown Midge Larva illustration
Chocolate Brown Midge Emerger illustration
Chocolate Brown Midge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Micro Black Midge
Color: Blackish to Black
Dates: Mar 1 – Nov 15
Emergence: Morning
Size: 22-26
Spinner Fall: 2-3 Hours
Micro Black Midge Larva illustration
Micro Black Midge Emerger illustration
Micro Black Midge Adult illustration
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
Snow Midge Larva illustration
Snow Midge Emerger illustration
Snow Midge Adult illustration
Illustrations © The Flyfisher Group 

Stoneflies
Insects: Giant Golden
Color: Brownish Yellow
Dates: Jun 1 – Aug 1
Emergence: Follows Salmonflies
Size: 14-18
Spinner Fall: NA
Giant Golden Nymph illustration
Giant Golden Adult illustration
Illustrations © The Flyfisher Group 
Insects: Micro Yellow
Color: Greenish Yellow to Yellow
Dates: Jun 1 – Aug 30
Emergence: 46-54° Water Temps Morning
Size: 18-22
Spinner Fall: NA
Micro Yellow Nymph illustration
Micro Yellow Adult illustration
Illustrations © The Flyfisher Group 
Insects: Winter Black
Color: Black Brown to Reddish Olive, Mottled Brown
Dates: Apr 1 – Aug 15
Emergence: Cold Mountain Streams and Small Ponds
Size: 18-22
Spinner Fall: NA
Winter Black Nymph illustration
Winter Black Adult illustration
Illustrations © The Flyfisher Group 
Insects: Yellow Sally
Color: Pale Yellow to Pinkish Yellow
Dates: Jun 15 – Aug 30
Emergence: Morning to Early Afternoon
Size: 2-8
Spinner Fall: NA
Yellow Sally Nymph illustration
Yellow Sally Adult illustration
Illustrations © The Flyfisher Group 

Terrestrials
Insects: Beetle
Color: Brownish to Black
Dates: May 1 – Nov 30
Emergence: All Day
Size: 10-18
Spinner Fall: NA
Beetle illustration
Illustrations © The Flyfisher Group 
Insects: Black & Red Ant
Color: Red & Black
Dates: Jul 1 – Sep 30
Emergence: All Day
Size: 18-20
Spinner Fall: NA
Black & Red Ant illustration
Illustrations © The Flyfisher Group 
Insects: Black Ant
Color: Black
Dates: May 1 – Nov 15
Emergence: All Day
Size: 20-24
Spinner Fall: NA
Black Ant illustration
Illustrations © The Flyfisher Group 
Insects: Cricket
Color: Brownish Olive to Black
Dates: Jun 1 – Nov 30
Emergence: Twilight & Dusk
Size: 8-16
Spinner Fall: NA
Cricket illustration
Illustrations © The Flyfisher Group 
Insects: Dog Day Cicadas
Color: Black & Orange
Dates: Jul 1 – Aug 31
Emergence: Varied
Size:
Spinner Fall: NA
Dog Day Cicadas illustration
Illustrations © The Flyfisher Group 
Insects: Grasshopper
Color: Green to Brownish Tan
Dates: May 15 – Nov 15
Emergence: All Day
Size: 2-14
Spinner Fall: NA
Grasshopper illustration
Grasshopper illustration
Illustrations © The Flyfisher Group 
Insects: Red Ant
Color: Red to Orangish
Dates: May 1 – Oct 15
Emergence: All Day
Size: 18-22
Spinner Fall: NA
Red Ant illustration
Illustrations © The Flyfisher Group 


Current Conditions

Thunderstorm
Currently: Thunderstorm
Temperature:  61 F
Temp Max:  77 F
Temp Min:  49 F
Humidity: 61%
Wind: 4 ESE mph
Pressure: 1021
Rain Saturday 9:00PM — 55 ℉
Expect light rain with temperatures ranging between 51 and 55 ℉.
Wind: 6 N mph; Humidity: 94%;  Rain: 1.312 for next 3 hours.
Clouds Sunday 6:00AM — 50 ℉
Expect few clouds with temperatures ranging between 49 and 50 ℉.
Wind: 19 W mph; Humidity: 71%; 
Clear Sunday 9:00AM — 66 ℉
Expect clear sky with temperatures ranging between 66 and 66 ℉.
Wind: 6 WNW mph; Humidity: 41%; 
Clear Sunday 12:00PM — 74 ℉
Expect clear sky with temperatures ranging between 74 and 74 ℉.
Wind: 9 ENE mph; Humidity: 30%; 
Rain Sunday 3:00PM — 66 ℉
Expect light rain with temperatures ranging between 66 and 66 ℉.
Wind: 16 ESE mph; Humidity: 54%;  Rain: 1.312 for next 3 hours.
Rain Sunday 6:00PM — 55 ℉
Expect moderate rain with temperatures ranging between 55 and 55 ℉.
Wind: 15 NNW mph; Humidity: 81%;  Rain: 3.688 for next 3 hours.
Rain Sunday 9:00PM — 51 ℉
Expect light rain with temperatures ranging between 51 and 51 ℉.
Wind: 6 NNW mph; Humidity: 98%;  Rain: 1.375 for next 3 hours.
Rain Monday 6:00AM — 47 ℉
Expect light rain with temperatures ranging between 47 and 47 ℉.
Wind: 5 W mph; Humidity: 91%;  Rain: 0.312 for next 3 hours.
Clear Monday 9:00AM — 60 ℉
Expect clear sky with temperatures ranging between 60 and 60 ℉.
Wind: 7 ESE mph; Humidity: 69%; 
Rain Monday 12:00PM — 66 ℉
Expect light rain with temperatures ranging between 66 and 66 ℉.
Wind: 18 E mph; Humidity: 63%;  Rain: 0.688 for next 3 hours.
Rain Monday 3:00PM — 65 ℉
Expect light rain with temperatures ranging between 65 and 65 ℉.
Wind: 14 E mph; Humidity: 67%;  Rain: 2.5 for next 3 hours.
Rain Monday 6:00PM — 53 ℉
Expect moderate rain with temperatures ranging between 53 and 53 ℉.
Wind: 4 ESE mph; Humidity: 93%;  Rain: 8.625 for next 3 hours.
Clouds Monday 9:00PM — 52 ℉
Expect overcast clouds with temperatures ranging between 52 and 52 ℉.
Wind: 11 W mph; Humidity: 88%; 
Clear Tuesday 6:00AM — 49 ℉
Expect clear sky with temperatures ranging between 49 and 49 ℉.
Wind: 15 W mph; Humidity: 74%;