Colorado Marathon
Fort Collins, CO, USA · May 2, 2027
Race Day Weather
42°at start
63° high
Light
Dry
Cool start — fast day potential, big temp swing
A cool 42°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 63°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
Race day forecast available in 208 days
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Distance: 26.2mi
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Race Plan
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True Effort pacing, weather-adjusted mile splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.
Race Conditions
Weather Splits
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Carb Tracker
Spectator Guide
Race Band
Race weekend
Sunday, May 2
Marathon (26.2 mi)
Half Marathon (13.1 mi)
10K (6.2 mi)
5K (3.1 mi)
FAQ
When is the 2027 Colorado Marathon?
The 2027 Colorado Marathon will be held on Sunday May 2, 2027.
Is the Colorado Marathon a Boston Marathon Qualifier?
Yes, the Colorado Marathon is an official Boston Marathon qualifier.
What will the weather be like for the 2027 Colorado Marathon?
The forecast calls for a high of 70°F and a low of 42°F with a 8% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.
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