Colorado River Fishing Forecast
High-elevation headwaters in Rocky Mountain National Park with native Colorado River cutthroat
Open year-round
Gold Medal sections (Fraser R to Troublesome Creek; Canyon Ck to Rock Ck). Year-round
Today's Fishing Conditions
Fair
Updated 3:39 PM
45°F
-999999 CFS
2 AM - 4 AM
WD-40
7-Day Forecast
Free forever • No signup required • Hourly updates
Quick Facts
Brown Trout, Rainbow Trout, Brook Trout, and Colorado River Cutthroat Trout
freestone
36°F - 45°F
March Fishing Tactics
Primary Targets
Recommended Tactics
Early hatches begin. Look for BWOs.
Year-Round Fishing Guide
| Month | Water Temp | Tactics |
|---|---|---|
| January | 32-38°F | Deep nymphing, Midges, Streamers |
| February | 33-40°F | Midges, Small nymphs, Deep pools |
| March(Now) | 36-45°F | BWO dries, Streamers, Early stonefly nymphs |
| April | 40-50°F | Skwala dries, BWO patterns, Streamers |
| May | 45-55°F | Mother's Day Caddis, Nymphing, Streamers |
| June | 50-60°F | Salmonfly dries, Golden Stones, PMDs |
| July | 55-68°F | PMDs, Hoppers, Caddis, Attractor dries |
| August | 55-70°F | Hoppers, Tricos, PMDs, Terrestrials |
| September | 48-58°F | BWOs, Streamers, Hoppers |
| October | 40-50°F | Streamers, BWOs, Egg patterns |
| November | 35-42°F | Streamers, Deep nymphs, Egg patterns |
| December | 32-38°F | Deep 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.
Parshall
Access to quality middle sections.
Kremmling
Lower river access with good floats.
Pumphouse
BLM access to canyon water.
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
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 Colorado Trout Rivers
South Platte (Cheesman)
Gunnison (below Taylor)
Animas
Fryingpan
Arkansas River
Ready to Fish the Colorado River?
Get real-time forecasts with AI-powered fly recommendations, live water conditions, and hatch predictions.
Get Your Forecast