Leadville Trail Marathon

Leadville, CO, USA · June 27, 2026
partly-cloudy-day44°·68° high·Light·Dry
8

Race Day Weather

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

Cool morning, warming afternoon

Runners will face a temperature rise from 44°F at the start to a warm 70°F by race end. Winds will initially provide a tailwind but shift to headwinds during significant climbs, particularly from miles 7-9 and 15-16. With humidity at a manageable 53%, hydration should be prioritized, especially as temperatures peak. Adjust pacing strategy on climbs, particularly between miles 11-13 and 18-20, where conditions will be toughest.

Race day forecast available in 32 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

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 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
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