Race Day Weather
51°
78° high
Breezy
Dry
Warm afternoon, moderate winds
Runners will face temperatures rising from 54°F at the start to a warm 78°F by the finish. Winds will be a gentle SW at 11 mph, with gusts up to 28 mph. Given the rising heat, it’s advisable to pace conservatively early and ensure adequate hydration throughout the race.
Race day forecast available in 46 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.
