Colorado Fall Equinox Marathon

Fort Collins, CO, USA · September 20, 2026
partly-cloudy-day55°·79° high·Light·Dry
8
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Race Day Weather

partly-cloudy-day
55°at start
83° high
Light
Dry

Warm afternoon, mild wind conditions

Runners will face a temperature rise from 55°F to a peak of 81°F, leading to a warm finish. Wind will be light at 6 mph from the SW, with occasional gusts up to 17 mph. With moderate humidity at 46%, adjusting pace and ensuring hydration will be crucial, especially in the latter stages of the race.

Race day forecast available in 117 days
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Distance: 26.2mi
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Race Info

The Colorado Fall Equinox Marathon offers runners a breathtaking point-to-point course through the picturesque Poudre River Canyon, featuring a challenging initial ascent followed by a rewarding downhill stretch. Starting at Ohana Mountain Ranch, the marathon course winds through the Buckhorn and Poudre River Canyons, culminating in a scenic finish near Fort Collins. Runners are treated to stunning views of the Cache la Poudre River, Colorado's only designated Wild & Scenic River, and are celebrated with a festive post-race party complete with music, local brews, and food.

Area Map

Course Map

FAQ

When is the 2026 Colorado Fall Equinox Marathon?

The 2026 Colorado Fall Equinox Marathon will be held on Sunday September 20, 2026.

What will the weather be like for the 2026 Colorado Fall Equinox Marathon?

The forecast calls for a high of 83°F and a low of 54°F with a 6% chance of rain.

Historical Weather

Based on 6 years of data
Avg Temp
72°F
L:52° H:72°
RunScore
8
Conditions
Rain Freq
33%
2 of 6 yrs
Wind8mph
Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
partly-cloudy-day
55°/66°Light
8
2024
rain
48°/59°Light
8
2023
clear-day
48°/80°-
8
2022
clear-day
53°/75°-
9
2021
clear-day
64°/83°-
8
2019
partly-cloudy-day
43°/69°-
8