Colfax Marathon
Denver, CO, USA · May 16, 2027
Race Day Weather
46°at start
68° high
Light
Dry
Your goal
0:00:00
Cool start, warming temps ahead
Runners will face a gradual temperature rise from 44°F at the start to a peak of 67°F. With light winds from the S, conditions will remain manageable but may feel warmer later. To maintain performance, runners should consider adjusting their pace as temps rise and stay hydrated throughout the race.
Race day forecast available in 200 days
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Distance: 26.2mi
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Race weekend
Sunday, May 16
Marathon (26.2 mi)
Half Marathon (13.1 mi)
10M (10.0 mi)
5K (3.1 mi)
FAQ
When is the 2027 Colfax Marathon?
The 2027 Colfax Marathon will be held on Sunday May 16, 2027.
Is the Colfax Marathon a Boston Marathon Qualifier?
Yes, the Colfax Marathon is an official Boston Marathon qualifier.
What will the weather be like for the 2027 Colfax Marathon?
The forecast calls for a high of 69°F and a low of 43°F with a 9% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.
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