Flagstaff Marathon

Flagstaff, AZ, USA • October 3, 2026
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clear-day Clear conditions throughout the day.

Known as the “The Coolest Marathon in Arizona,” The Flagstaff Marathon is a completely off-road course in the Coconino National Forest. At 8,000+ ft. elevation, it is known as one of the most challenging courses in the country, with 1,200 feet of climbing for the half marathon and 2,400 for the full, and composed entirely of single and double track trails. Source

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When is the 2026 Flagstaff Marathon?

The 2026 Flagstaff Marathon will be held on Saturday October 3, 2026.

What is the time limit for the Flagstaff Marathon?

The time limit for the Flagstaff Marathon is 7 hours.

Historical Weather

Based on 18 years of data
Avg Temp
71°F
L:54°H:73°
RunScore
7
Conditions
Rain Freq
11%
2 of 18 yrs
Wind11mph
Dew32°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Flagstaff Marathon

Clear conditions throughout the day.

2025
clear-day
51°/64°-
7

2024 Flagstaff Marathon

Clear conditions throughout the day.

2024
clear-day
59°/83°-
8

2023 Flagstaff Marathon

Clear conditions throughout the day.

2023
clear-day
36°/70°-
8

2022 Flagstaff Marathon

Partly cloudy throughout the day with rain.

2022
clear-day
48°/67°Light
9

2021 Flagstaff Marathon

Clear conditions throughout the day.

2021
clear-day
46°/64°-
8

2018 Flagstaff Marathon

Clearing in the afternoon.

2018
cloudy
55°/82°-
7

2017 Flagstaff Marathon

Clear conditions throughout the day.

2017
clear-day
55°/70°-
8

2016 Flagstaff Marathon

Clear conditions throughout the day.

2016
clear-day
53°/76°-
8

2015 Flagstaff Marathon

Clear conditions throughout the day.

2015
clear-day
58°/77°-
7

2014 Flagstaff Marathon

Partly cloudy throughout the day with afternoon rain.

2014
clear-day
63°/73°-
8

2013 Flagstaff Marathon

Clear conditions throughout the day.

2013
clear-day
61°/72°-
7

2012 Flagstaff Marathon

Partly cloudy throughout the day.

2012
partly-cloudy-day
57°/79°-
8

2011 Flagstaff Marathon

Becoming cloudy in the afternoon.

2011
clear-day
55°/79°-
8

2010 Flagstaff Marathon

Clear conditions throughout the day.

2010
clear-day
60°/75°-
8

2009 Flagstaff Marathon

Clear conditions throughout the day.

2009
clear-day
54°/79°-
8

2008 Flagstaff Marathon

Clear conditions throughout the day with late afternoon rain.

2008
partly-cloudy-day
58°/76°-
8

2007 Flagstaff Marathon

Partly cloudy throughout the day with rain.

2007
partly-cloudy-day
54°/65°Light
7

2006 Flagstaff Marathon

Partly cloudy throughout the day.

2006
clear-day
42°/55°-
8
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Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

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