Sioux Falls Marathon on Aug 25, 2024 cancelled to due excessive heat, half marathon and 5K to continue.
Sioux Falls Marathon
Sioux Falls, SD, USA · September 20, 2026
Race Day Weather
57°at start
76° high
Breezy
Dry
Warm afternoon, moderate breeze
Runners will face a temperature rise from 57°F at the start to 74°F by the finish, with an average humidity of 69% and a dew point of 53°F. A moderate breeze from the SSW at 13 mph will provide some relief. Runners should start conservatively and plan for hydration breaks as temperatures increase.
Race day forecast available in 80 days
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FAQ
When is the 2026 Sioux Falls Marathon?
The 2026 Sioux Falls Marathon will be held on Sunday September 20, 2026.
Is the Sioux Falls Marathon a Boston Marathon Qualifier?
Yes, the Sioux Falls Marathon is an official Boston Marathon qualifier.
What is the time limit for the Sioux Falls Marathon?
The time limit for the Sioux Falls Marathon is 6.5 hours.
What will the weather be like for the 2026 Sioux Falls Marathon?
The forecast calls for a high of 77°F and a low of 54°F with a 9% chance of rain.
