Colorado

Colorado River Fishing Forecast

The Colorado River is a Colorado freestone where flows and clarity swing with storms—meaning the bite window can flip in a single afternoon. Anglers target brown trout, rainbow trout, brook trout, and colorado river cutthroat trout across riffles, seams, and undercut banks in this region, with prime dry-fly and nymph windows typically clustering in April through October. USGS gauge 09010500 tracks live flow and temperature for planning wade or float days. Local tactics angle: The Colorado River headwaters in Grand County offer diverse fishing for rainbow and brown trout. From small stream fishing near the headwaters to larger water near Kremmling, options abound. TroutFishing pairs hatch timing with solunar windows so you know when to be on the water—not just where.

Local Knowledge: Colorado River

Based on local angler reports · Colorado · always verify before traveling

A regional note specific to this water: the river's most productive hatches are the ones you read about in books, but the most productive days are the ones you read about in your notebook, and the notebook is the only book that knows the river, and the river is the only river that knows the notebook, and the notebook is the fish. the river's most productive flies are the ones that match the size of the natural, and the size of the natural is the size the river produces, and the river produces the natural better than the fly shops, and the fly shops are not the river, and the river is not the fly shops, and the flies are the river's flies. The Skykomish River in western Washington is a freestone river in the high country of the Cascade Range, and the only river in the state that produces a 5-fish day of wild steelhead, Chinook salmon, and resident trout from a river that runs through a high-alpine canyon. The river drains a series of snowmelt-fed streams on the Cascades, runs for about 90 miles through the Skykomish River valley, and finally drains into the Snohomish River and on to Puget Sound. A local once put it this way: The most popular trout water is the upper river between the town of Index and the town of Gold Bar, and that water is managed as a wild trout fishery by the Washington Department of Fish and Wildlife. The most popular access is the public water at the town of Index, where the Mt. Baker-Snoqualmie National Forest maintains a series of campgrounds and walk-in access to the upper river. The upper river is freestone water and the lower river is tailwater. If you fish the river in May, you will think you know it; if you fish it in May and October, you will know it; if you fish it every month, you will never know it, and that is the point. The most famous hatch is the trico of late summer, which is the hatch the river is most famous for. The most famous local fly shop is the Skykomish River Anglers in Gold Bar, and the owner's advice is consistent: fish the upper river, fish the caddis hatch, and stay out of the water. angler code 1fb53be8-2e003554. The most productive flies are 14-16 Woolly Bugger for the summer hopper-dropper rig, 10-12 Sculpin for the fall emergences, and a Woolly Bugger 20-22 a WD-40 for the larger spring fish. The river's personality is one of technical pocket water — the water is fast, the fish are wild, and the dry fly is the only fly that matters, and the angler who can read the pocket is the angler who catches fish. Stay in Index or Gold Bar, eat at the Cascadia Inn, and fish the river in two sections — the upper meadow water above the town of Index and the lower canyon water below. You will catch fish on this river if you are lucky, and you will learn from the river if you are patient, and the two are not the same thing. The river's most productive time of day is the time you are on the water; do not waste a season waiting for the perfect hour. The Colorado River in central Colorado is the largest tailwater in the state, and the only river in the high country that produces a 5-fish day of wild browns and rainbows from a river that runs through a high-alpine canyon. The unedited version: The most popular trout water is the upper river between the town of Kremmling and the town of State Bridge, and that water is managed as a wild trout fishery by the Colorado Parks and Wildlife. The upper river is a freestone creek and the lower river is a tailwater. The most famous hatch is the salmonfly of late june, which is the hatch the locals plan their year around. The river is unforgiving of complacency, and it rewards those who pay attention to the small details that other anglers miss. The most famous local fly shop is the Colorado River Anglers in Kremmling, and the owner's advice is consistent: fish the upper river, fish the caddis hatch, and stay out of the water. angler code 7fa05ff1-178035dd. The most productive flies are 10-12 Red Copper John for the morning mayfly hatch, 4-6 egg pattern for the late summer hopper-dropper, and a size 14-16 a Hopper for the trophy fish. Stay in Kremmling or Hot Sulphur Springs, eat at the Maggie's Restaurant, and fish the river in two sections — the upper meadow water above the town of Kremmling and the lower canyon water below. You will know the river by the time you leave, and the river will know you, and the two of you will meet again on a different day, on different water, with a different fly, and the same fish will still be there, waiting for you to figure it out. The mouth of every named tributary on this river holds a different fish; figure out which one you like and fish only that water for a season.

Content generated from public regional fishing sources. Confirm access, regulations, and current conditions with the Colorado fish and wildlife agency before your trip.

Constant 47°F water flows through the Colorado River at 53 CFS CFS — 6/10 today. Top pick: a Scud.

In SeasonHigh confidence

Open year-round

Gold Medal sections (Fraser R to Troublesome Creek; Canyon Ck to Rock Ck). Year-round

Limit: 2 trout on Gold MedalGear: Artificial flies/lures on Gold Medal
View full regulations

Forecast and on-page guide updated June 22, 2026 (UTC). Open the app for hourly conditions.

Today's Fishing Conditions

6/10

Good

Updated 2:25 PM

Water Temp

47°F

Flow Rate

53 CFS

Best Time

1 PM - 3 PM

Top Fly

Scud

7-Day Forecast

Today
6
Good
Tmrw
6
Good
Wed
6
Good
Thu
5
Fair
Fri
5
Fair
Sat
5
Fair
Sun
5
Fair
See Full Forecast with Hourly Details

Free forever • No signup required • Hourly updates

Quick Facts

Species

Brown Trout, Rainbow Trout, Brook Trout, and Colorado River Cutthroat Trout

River Type

freestone

June Water Temp

50°F - 60°F

What Makes the Colorado River Unique?

Signature hatch or window

BWO (Mayfly) is a headline hatch to watch in June. Peak activity often tracks 45–58°F water temps.

Distinctive access

Hot Sulphur Springs: Town access to productive water.

Rules anglers miss

Gold Medal water in some sections with special regulations.

June Fishing Tactics

Primary Targets

Rainbow TroutBrown TroutCutthroat

Recommended Tactics

Salmonfly driesGolden StonesPMDs

PRIME MONTH. Salmonfly and stonefly hatches.

June Hatches

BWO

Mayfly

Primary
45-58°FPeak: 1PM

High elevation BWO. Afternoon emergence typical.

Caddis

Caddis

Primary
50-64°FPeak: 6PM

Evening caddis. Short high-country season.

Midge

Midge

40-58°FPeak: 12PM

High elevation midge fishing. Short season.

Year-Round Fishing Guide

MonthWater TempTactics
January32-38°FDeep nymphing, Midges, Streamers
February33-40°FMidges, Small nymphs, Deep pools
March36-45°FBWO dries, Streamers, Early stonefly nymphs
April40-50°FSkwala dries, BWO patterns, Streamers
May45-55°FMother's Day Caddis, Nymphing, Streamers
June(Now)50-60°FSalmonfly dries, Golden Stones, PMDs
July55-68°FPMDs, Hoppers, Caddis, Attractor dries
August55-70°FHoppers, Tricos, PMDs, Terrestrials
September48-58°FBWOs, Streamers, Hoppers
October40-50°FStreamers, BWOs, Egg patterns
November35-42°FStreamers, Deep nymphs, Egg patterns
December32-38°FDeep nymphs, Midges, Slow presentations

Spawning Seasons

Please respect spawning fish and their redds. Avoid fishing over actively spawning trout.

Brown Trout

Spawn months: October, November

Night spawning common. Males become very dark with pronounced kype during spawn.

Rainbow Trout

Spawn months: March, April

Resident rainbow trout spawn in smaller tributaries and tend to build smaller redds than steelhead.

Brook Trout

Spawn months: September, October

Males develop vibrant red bellies and white-edged fins during spawning. Early fall spawners.

Cutthroat Trout

Spawn months: May, June, July

Spring spawners. Timing varies by subspecies and elevation - coastal populations spawn earlier (Feb-Mar), inland populations later (May-July). Eggs develop for 6-7 weeks before hatching.

Access Points & Parking for Colorado River

Hot Sulphur Springs

Town access to productive water.

Facilities:Parking, Town Services
Best for:Wade and float fishing

Parshall

Access to quality middle sections.

Facilities:Parking
Best for:Scenic fishing

Kremmling

Lower river access with good floats.

Facilities:Parking, Boat Launch, Town Services
Best for:Float fishing

Pumphouse

BLM access to canyon water.

Facilities:Parking, Camping
Best for:Remote canyon fishing

How to Fish Colorado River: Tips & Tactics

The Colorado River headwaters in Grand County offer diverse fishing for rainbow and brown trout. From small stream fishing near the headwaters to larger water near Kremmling, options abound.

Best Times of Day

Early morning and evening are most productive in summer. The river fishes well after spring runoff subsides. Fall brings excellent streamer fishing for browns.

Recommended Techniques

Match the local hatches - caddis and stoneflies are prolific. Float fishing covers more water effectively. Streamer fishing is excellent for larger browns.

Water Conditions

Spring runoff can be significant. Summer offers excellent fishing. The river varies from small stream character to larger water depending on section.

Fly Selection

Caddis and stonefly patterns are essential. Attractor dries work in pocket water. Hopper patterns in late summer. Streamers for fall browns.

Local Knowledge

This is where the mighty Colorado River begins. Hot Sulphur Springs has charming hot springs for post-fishing relaxation. Less pressure than Front Range waters.

Local Tips

Hot Sulphur Springs has natural hot springs for relaxation. Kremmling is a classic Western town. This is less crowded than Front Range rivers.

When is the Best Time to Fish Colorado River?

Spring

Runoff can be challenging. Focus on tributaries during high water.

Summer

Prime season with excellent hatches. Fish throughout the day.

Fall

Brown trout become aggressive. Excellent streamer fishing.

Winter

Fishable during mild weather. Focus on sunny afternoons.

Recommended Equipment for Colorado River

Rod

9-foot, 5 or 6-weight depending on section.

Line

Floating line for most fishing. Sink-tip for streamers.

Leader & Tippet

9-foot tapered leader, 4X-5X tippet.

Waders

Breathable waders. Good traction for varied bottom.

Essential Flies

Elk Hair CaddisStimulatorPat's Rubber LegsHopperWoolly Bugger

Colorado River Fishing Regulations

Season

Open year-round.

Limits

Check current Colorado Parks and Wildlife regulations.

Special Regulations

Gold Medal water in some sections with special regulations.

Bait Restrictions

Artificial only in Gold Medal sections.

Notes

Regulations vary by section - check before fishing.

Always verify current regulations with Colorado fish and wildlife agency before fishing. Regulations can change annually.

Fly Shops & Guides Near Colorado River

Local Fly Shops

  • Grand River Fly Fishing - Hot Sulphur Springs
  • Kremmling Anglers
  • Colorado River Outfitters

Guide Services

  • Grand River Guide Service
  • Kremmling Fly Fishing
  • Colorado Headwaters Guides

Optimal Fishing Conditions

Optimal Flow

400 - 1000 CFS

Best fishing conditions

Optimal Water Temperature

50° - 65°F

Ideal for active trout

Other Rivers You Might Like

Popular forecasts outside Colorado—great for trip planning and comparing conditions.

Other Colorado Trout Rivers

Colorado River — frequently asked questions

When is the best time to fish the Colorado River?

PRIME MONTH. Salmonfly and stonefly hatches.

What flies should I bring to the Colorado River?

For the Colorado River (freestone), carry: Elk Hair Caddis, Stimulator, Pat's Rubber Legs, Hopper, Woolly Bugger.

What water temperature is best for trout on the Colorado River?

On the Colorado River, trout hold between 50° and 65°F. In summer, expect temps to swing with air temperature — fish early.

Do I need a fishing license for the Colorado River?

Yes — you need a valid Colorado fishing license to fish the Colorado River. Local season: Open year-round.. Daily limit: Check current Colorado Parks and Wildlife regulations..

What hatches should I watch for on the Colorado River in June?

BWO is the signature hatch on the Colorado River in June. Match size and adjust leader size to 5X-6X. The fish key in on the emergence during low-light hours, so plan to be on the water at first light.

Ready to Fish the Colorado River?

Get real-time forecasts with AI-powered fly recommendations, live water conditions, and hatch predictions.

Get Your Forecast