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Leadville Trail 100 MTB weather
What race day has been like in Leadville, Colorado, the forecast when it’s close, and how to see the wind and rain on every stretch of the course.
- When
- Mid-August
- Start & finish
- Downtown Leadville, Colorado
- Distance
- About 104 mi, out and back
- Climbing
- More than 12,000 ft
- Altitude
- Starts at 10,152 ft; high point about 12,600 ft on Columbine
Live weather
Loading the weather in Leadville…
Race day in past years
The weather in Leadville on August 15, 7 AM to 6 PM, in each of the last 10 years. The race isn’t always on that exact date, but it shows what that time of year is like.
Loading 10 years of weather…
Measured for the base town. Out on the course, especially higher up, it can be colder, windier or wetter.
Forecast the course, stretch by stretch
The town forecast only tells part of the story. Route Forecast times the weather to where you’ll be on the course.
- Get the course from the race: a GPX file, or a Ride with GPS or Strava route link. Races usually publish it a few weeks before.
- Open Route Forecast and drop in the file or paste the link.
- Set the race start time and your pace. You’ll see temperature, rain and headwind, tailwind or crosswind for every stretch.
About the course
- An out-and-back from downtown Leadville, south past Twin Lakes to the top of Columbine and back.
- Powerline is the famous rocky climb and descent; Columbine is the long climb to the course’s high point.
- It’s a mountain bike race, but most of the course is dirt road and double-track rather than singletrack.
- Weather: At over 10,000 feet, early mornings in mid-August are cold and afternoons can bring thunderstorms, hail and a sharp temperature drop, especially high on Columbine. The weather at the high point can be very different from town.
Questions
What’s the weather usually like at Leadville?
At over 10,000 feet, early mornings in mid-August are cold and afternoons can bring thunderstorms, hail and a sharp temperature drop, especially high on Columbine. The weather at the high point can be very different from town. This page shows the weather in Leadville, Colorado on August 15 in each of the last 10 years, from 7 AM to 6 PM: temperature, wind and rain.
When is Leadville Trail 100 MTB?
Mid-August. The 2026 race was August 15.
Can I get a forecast for the whole Leadville course?
Yes. Get the course GPX file, or a Ride with GPS or Strava route link, from the race, and open it in Route Forecast (free, no account). Set your start time and pace, and it shows the temperature, rain and headwind, tailwind or crosswind on every stretch of the course, timed to when you’ll be there.
When will the race-day forecast be available?
Weather models forecast about two weeks ahead. Once the race date is set, check this page about two weeks before. Until then it shows the weather there now and race-day weather from past years.