Aspen Backcountry Marathon

Aspen, CO, USA · July 31, 2027
partly-cloudy-day50°·71° high·Light·Dry
8
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Race Day Weather

partly-cloudy-day
50°at start
71° high
Light
Dry

Cool start, warming up quickly

Runners will face a temperature rise from 50°F at the start to a peak of 71°F by the finish. With light winds from the west and gusts up to 20 mph, the wind will not significantly affect pacing early on. However, runners should prepare for headwinds from miles 14 to 21, making those sections particularly challenging. Starting conservatively is advised, especially as temperatures climb, to maintain energy for the hilly terrain.

Race day forecast available in 270 days
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Pace Calculator

Distance: 26.2mi
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Race Info

FAQ

When is the 2027 Aspen Backcountry Marathon?

The 2027 Aspen Backcountry Marathon will be held on Saturday July 31, 2027.

What will the weather be like for the 2027 Aspen Backcountry Marathon?

The forecast calls for a high of 72°F and a low of 48°F with a 11% chance of rain.

Historical Weather

Based on 6 years of data
Avg Temp
76°F
L:56° H:77°
RunScore
8
Conditions
Rain Freq
33%
2 of 6 yrs
Wind8mph
Dew38°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
62°/87°-
7
2025
cloudy
58°/77°Light
7
2023
partly-cloudy-day
52°/75°-
8
2022
partly-cloudy-day
57°/77°-
8
2019
cloudy
57°/63°Light
7
2011
clear-day
53°/82°-
8