Lake John Fishing Report

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Last Updated: December 4, 2025

Lake John is a popular fishing destination in Colorado, USA.


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Summary

Anglers come here to catch rainbow, brown, and cutthroat trout, as well as kokanee salmon. Nearby activities include hiking, bird watching, and camping. For the best fishing experience, anglers are advised to use small lures or flies and fish near the bottom. The best time to visit Lake John is from May to October when the weather is mild and the fish are most active. In the summer months, the average temperature is around 70°F, while in the fall, it drops to around 50°F.

       

Weather Forecast

Angling Safety Guidelines

Know the Regulations
Check local fishing rules, seasons, size limits, and license requirements to ensure legal and sustainable angling.
Handle Fish Responsibly
Use wet hands, minimize air exposure, and release fish gently to improve survival rates when practicing catch-and-release.
Choose the Right Gear
Match your rod, line, and tackle to the species and conditions to increase success and reduce unnecessary harm to fish.
Respect the Waterway
Avoid disturbing habitat, prevent bank erosion, and keep a safe distance from spawning areas to protect ecosystems.
Keep It Clean
Pack out all line, hooks, bait containers, and trash—discarded gear can injure wildlife and degrade waterways.

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