Leadville Trail Marathon

Leadville, CO, USA · June 27, 2026
clear-day43°·66° high·Breezy·Dry
8

Race Day Weather

clear-day
43°at start
68° high
Breezy
Dry

Cool start, warming up significantly

Runners will face temperatures starting at 43°F and rising to 68°F, necessitating a conservative approach early on. Winds will be mostly crosswind, transitioning to a tailwind around mile 6 and again at mile 20, providing some relief on key descents. With low humidity at 32%, hydration needs may be less frequent, but attention should be paid to pacing during the challenging climbs and descents, especially between miles 11 and 20.

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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

FAQ

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 69°F and a low of 42°F with a 3% 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
clear-day
34°/71°-
8
2024
cloudy
49°/64°-
8
2023
partly-cloudy-day
32°/46°Light
6
2022
cloudy
50°/62°-
8
2021
partly-cloudy-day
40°/64°-
8
2019
clear-day
30°/60°-
8
2018
partly-cloudy-day
48°/64°-
8
2017
clear-day
53°/70°-
8
2016
clear-day
34°/69°-
8
2015
clear-day
39°/72°-
8
2014
clear-day
41°/58°-
8
2013
clear-day
47°/73°-
8
2012
clear-day
38°/70°-
8
2011
clear-day
44°/68°-
8
2010
partly-cloudy-day
44°/66°-
8
2009
clear-day
41°/74°-
8
2008
clear-day
42°/72°-
8
2007
clear-day
41°/70°-
8
2006
clear-day
40°/69°-
8
2005
clear-day
40°/69°-
8
2004
clear-day
34°/63°-
8
2002
partly-cloudy-day
45°/65°-
8
2001
clear-day
43°/72°-
8