Sioux Falls Marathon on Aug 25, 2024 cancelled to due excessive heat, half marathon and 5K to continue.

Sioux Falls Marathon

Sioux Falls, SD, USASeptember 20, 2026
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Race Day Weather

partly-cloudy-day
59°
77° high
Breezy
Dry

Warm day, adjust pace wisely

Runners will face a temperature rise from 59°F at the start to 75°F by the finish, alongside average humidity at 71%. A steady wind from the S will reach up to 13 mph with gusts to 27 mph. Pacing should be conservative early to manage the heat and humidity.

Race day forecast available in 178 days
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The Sioux Falls Marathon is South Dakota’s premier marathon weekend and features races for all levels of runners: from the Miracle 5K to a USATF certified Full Marathon that is a Boston Qualifying Race. Source

Area Map

Course Map

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.

Historical Weather

Based on 8 years of data
Avg Temp
76°F
L:61° H:76°
RunScore
6
Conditions
Rain Freq
13%
1 of 8 yrs
Wind13mph
Dew62°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-night
54°/80°-
8
2024
cloudy
75°/82°-
7
2023
partly-cloudy-day
57°/76°-
8
2022
partly-cloudy-day
67°/82°-
7
2019
rain
58°/62°Light
7
2018
partly-cloudy-day
55°/70°-
8
2017
cloudy
67°/79°-
6
2016
clear-night
57°/75°-
6