In 44 days · Sun, Sep 20, 2026
Don't let race day sneak up
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When
Sunday, September 20th, 2026
Where
Sioux Falls, Sioux Falls SD
Distances
Marathon · Half · 5K
Typical weather
58–76°F · low rain risk
See last 10 years
On this date: rain 4 of the last 10 years
2025
57–73°F
dry
2024
57–82°F
dry
2023
61–84°F
dry
2022
63–88°F
dry
2021
54–77°F
rain
2020
59–77°F
dry
2019
71–82°F
dry
2018
59–75°F
rain
2017
57–71°F
rain
2016
59–84°F
rain
Best months to race in South Dakota →
About this race
Event Overview
- Date: 2026-09-20
- Location: Sioux Falls, SD
- Website: Sioux Falls Marathon
- Races: Full marathon, half marathon, & 5K
Course Highlights
- Scenic Routes: Features downtown Sioux Falls and iconic Falls Park.
- Community Parks: Runners will experience many of the city's finest parks.
- Bike Trail System: Incorporates the extensive bike trail system throughout the course.
- All Levels: Suitable for runners of all experience levels.
Giving Back
- Charitable Contribution: A portion of the net proceeds is donated to the Sanford Children's Miracle Network.
- Previous Donations: The 2024 races raised more than $20,000 for children in our community.
- Support Local: The event supports health and wellness in the Sioux Falls area.
- Community Impact: Engage with a cause that benefits local families and children.
Course map
Train with a club
Run clubs near Sioux Falls to train with before race day.
See all run clubs near Sioux Falls →
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