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
50°at start
66° high
Breezy
Dry
Comfortable temps, big temp swing
Mild 50°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 66°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing. Moderate humidity at 72% is worth noting for effort level, especially in later miles.
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Distance: 26.2mi
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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 66°F and a low of 50°F with a 19% chance of rain.
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