Silverton Alpine Marathon

Silverton, CO, USA · July 18, 2026
rain47°·59° high·Breezy·Light rain
9
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Race Day Weather

rain
47°at start
59° high
Breezy
Light rain

Cool start — fast day potential, warming through the race, rain likely

A cool 47°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 59°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Rain is likely — waterproof your phone and bib, and consider a disposable poncho for the corral.

rain8
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partly-cloudy-day9
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partly-cloudy-day9
rain9
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Pace Calculator

Distance: 26.2mi
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Race Info

Get ready to experience an epic trail adventure! The 50K and Marathon (~26.7 miles) loop takes you through the heart of the San Juan Mountains, following the historic Alpine Loop jeep roads. Along the way, you’ll pass through ghost mining towns such as Howardsville, Eureka, Animas Forks, and Gladstone. The course’s high point is California Pass, sitting at a breathtaking 12,930 feet! Source

Area Map

Course Map

FAQ

When is the 2026 Silverton Alpine Marathon?

The 2026 Silverton Alpine Marathon will be held on Saturday July 18, 2026.

What will the weather be like for the 2026 Silverton Alpine Marathon?

The forecast calls for a high of 59°F and a low of 45°F with a 79% chance of rain.

Historical Weather

Based on 17 years of data
Avg Temp
74°F
L:54° H:75°
RunScore
8
Conditions
Rain Freq
24%
4 of 17 yrs
Wind8mph
Dew35°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
partly-cloudy-day
55°/69°-
8
2024
clear-day
47°/71°-
9
2023
clear-day
54°/76°-
8
2022
clear-day
56°/79°-
8
2021
clear-day
58°/85°-
8
2020
clear-day
55°/89°-
8
2019
rain
54°/76°Light
8
2018
clear-day
54°/74°-
8
2017
partly-cloudy-day
62°/77°Light
8
2016
clear-day
49°/71°-
8
2015
clear-day
52°/78°-
8
2014
rain
52°/64°Light
8
2013
cloudy
58°/65°Light
8
2012
clear-day
48°/73°-
8
2011
clear-day
54°/76°-
8
2010
clear-day
54°/64°-
8
2009
clear-day
53°/86°-
8