Silverton Alpine Marathon

Silverton, CO, USA · July 18, 2026
partly-cloudy-day51°·73° high·Light·Dry
8
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History

Race Day Weather

partly-cloudy-day
51°at start
74° high
Light
Dry

Warming trend, light winds

Runners will face a temperature increase from 50°F to a peak of 73°F during the race. With light winds at 5 mph from the SE and moderate humidity at 52%, pacing adjustments may be necessary as temperatures rise. Hydration should be prioritized, especially as the day warms, while gear choices should consider the mild conditions.

Race day forecast available in 13 days
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Pace Calculator

Distance: 26.2mi
0:00:00
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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

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FAQ

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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 74°F and a low of 49°F with a 11% 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 Silverton Alpine Marathon

Partly cloudy throughout the day with early morning rain.

2025
partly-cloudy-day
55°/69°-
8

2024 Silverton Alpine Marathon

Clear conditions throughout the day.

2024
clear-day
47°/71°-
9

2023 Silverton Alpine Marathon

Clear conditions throughout the day.

2023
clear-day
54°/76°-
8

2022 Silverton Alpine Marathon

Partly cloudy throughout the day.

2022
clear-day
56°/79°-
8

2021 Silverton Alpine Marathon

Clear conditions throughout the day.

2021
clear-day
58°/85°-
8

2020 Silverton Alpine Marathon

Clear conditions throughout the day.

2020
clear-day
55°/89°-
8

2019 Silverton Alpine Marathon

Partly cloudy throughout the day with rain clearing later.

2019
rain
54°/76°Light
8

2018 Silverton Alpine Marathon

Partly cloudy throughout the day.

2018
clear-day
54°/74°-
8

2017 Silverton Alpine Marathon

Partly cloudy throughout the day with rain.

2017
partly-cloudy-day
62°/77°Light
8

2016 Silverton Alpine Marathon

Clear conditions throughout the day.

2016
clear-day
49°/71°-
8

2015 Silverton Alpine Marathon

Partly cloudy throughout the day with late afternoon rain.

2015
clear-day
52°/78°-
8

2014 Silverton Alpine Marathon

Partly cloudy throughout the day with rain.

2014
rain
52°/64°Light
8

2013 Silverton Alpine Marathon

Partly cloudy throughout the day with rain.

2013
cloudy
58°/65°Light
8

2012 Silverton Alpine Marathon

Clear conditions throughout the day.

2012
clear-day
48°/73°-
8

2011 Silverton Alpine Marathon

Partly cloudy throughout the day with early morning rain.

2011
clear-day
54°/76°-
8

2010 Silverton Alpine Marathon

Partly cloudy throughout the day.

2010
clear-day
54°/64°-
8

2009 Silverton Alpine Marathon

Clear conditions throughout the day.

2009
clear-day
53°/86°-
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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