Leadville Trail Marathon

Leadville, CO, USA · June 27, 2026
partly-cloudy-day44°·68° high·Light·Dry
8
Weather
Course
Race Info
FAQ
History

Race Day Weather

partly-cloudy-day
44°at start
72° high
Light
Dry

Cool start — fast day potential, big temp swing

A cool 44°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 72°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 30 days
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Race Info

This is a 26.2-mile (42.2 km) marathon through the mining districts east of Leadville, is held in June each year. The midpoint of the course is at Mosquito Pass, with an altitude of 13,185 feet (4,019 m). In 2006, a "heavy" half marathon event of 15 miles was added, which is run on the same day and also goes to the top of Mosquito Pass. Wikipedia

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FAQ

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When is the 2026 Leadville Trail Marathon?

The 2026 Leadville Trail Marathon will be held on Saturday June 27, 2026.

What will the weather be like for the 2026 Leadville Trail Marathon?

The forecast calls for a high of 74°F and a low of 43°F with a 7% chance of rain.

Historical Weather

Based on 23 years of data
Avg Temp
66°F
L:41° H:67°
RunScore
8
Conditions
Rain Freq
4%
1 of 23 yrs
Wind9mph
Dew28°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Leadville Trail Marathon

Clear conditions throughout the day.

2025
clear-day
34°/71°-
8

2024 Leadville Trail Marathon

Partly cloudy throughout the day.

2024
cloudy
49°/64°-
8

2023 Leadville Trail Marathon

Partly cloudy throughout the day with rain in the morning and afternoon.

2023
partly-cloudy-day
32°/46°Light
6

2022 Leadville Trail Marathon

Partly cloudy throughout the day with late afternoon rain.

2022
cloudy
50°/62°-
8

2021 Leadville Trail Marathon

Partly cloudy throughout the day.

2021
partly-cloudy-day
40°/64°-
8

2019 Leadville Trail Marathon

Becoming cloudy in the afternoon.

2019
clear-day
30°/60°-
8

2018 Leadville Trail Marathon

Partly cloudy throughout the day with late afternoon rain.

2018
partly-cloudy-day
48°/64°-
8

2017 Leadville Trail Marathon

Becoming cloudy in the afternoon.

2017
clear-day
53°/70°-
8

2016 Leadville Trail Marathon

Clear conditions throughout the day.

2016
clear-day
34°/69°-
8

2015 Leadville Trail Marathon

Clear conditions throughout the day.

2015
clear-day
39°/72°-
8

2014 Leadville Trail Marathon

Becoming cloudy in the afternoon.

2014
clear-day
41°/58°-
8

2013 Leadville Trail Marathon

Partly cloudy throughout the day with rain.

2013
clear-day
47°/73°-
8

2012 Leadville Trail Marathon

Partly cloudy throughout the day.

2012
clear-day
38°/70°-
8

2011 Leadville Trail Marathon

Clear conditions throughout the day.

2011
clear-day
44°/68°-
8

2010 Leadville Trail Marathon

Partly cloudy throughout the day.

2010
partly-cloudy-day
44°/66°-
8

2009 Leadville Trail Marathon

Becoming cloudy in the afternoon with afternoon rain.

2009
clear-day
41°/74°-
8

2008 Leadville Trail Marathon

Becoming cloudy in the afternoon with late afternoon rain.

2008
clear-day
42°/72°-
8

2007 Leadville Trail Marathon

Becoming cloudy in the afternoon with late afternoon rain.

2007
clear-day
41°/70°-
8

2006 Leadville Trail Marathon

Becoming cloudy in the afternoon with late afternoon rain.

2006
clear-day
40°/69°-
8

2005 Leadville Trail Marathon

Clear conditions throughout the day.

2005
clear-day
40°/69°-
8

2004 Leadville Trail Marathon

Clear conditions throughout the day.

2004
clear-day
34°/63°-
8

2002 Leadville Trail Marathon

Partly cloudy throughout the day.

2002
partly-cloudy-day
45°/65°-
8

2001 Leadville Trail Marathon

Partly cloudy throughout the day.

2001
clear-day
43°/72°-
8

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Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide

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