Race Day Weather
51°
78° high
Breezy
Dry
Warming trend, moderate wind
Runners will face temperatures rising from 54°F at the start to 78°F by the finish. A steady wind from the SW at 11 mph will provide a moderate challenge. With average humidity at 46% and a dew point of 44°F, conditions remain comfortable, but runners should consider adjusting their pace as temperatures increase.
Race day forecast available in 52 days
Pre-raceRace windowPost-race
The Visit Casper Marathon seeks to create a unique and memorable race experience for all its participants whether they are first time runners or elite athletes. We strive for a safe, enjoyable, and yet a challenging race events that pushes racers to achieve their best within our supportive running atmosphere and the Casper Wyoming community. Source
FAQ
When is the 2026 Casper Marathon?
The 2026 Casper Marathon will be held on Sunday June 7, 2026.
Is the Casper Marathon a Boston Marathon Qualifier?
Yes, the Casper Marathon is an official Boston Marathon qualifier.
What will the weather be like for the 2026 Casper Marathon?
The forecast calls for a high of 78°F and a low of 51°F with a 0% chance of rain.
