Heart of America Marathon

Columbia, MO, USASeptember 7, 2026
Register

Race Day Weather

partly-cloudy-day
63°
81° high
Breezy
Dry

Warm day, adjust pace early

Runners will face a temperature trend starting at 64°F and peaking at 80°F. With an average humidity of 73% and a dew point of 61°F, it’s crucial to adjust pace conservatively. A light headwind throughout may provide slight resistance, so hydration should be prioritized throughout the race.

Race day forecast available in 164 days
partly-cloudy-night9
partly-cloudy-night9
partly-cloudy-night9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7

Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
Pace
Weather Adj.
Common Goals:

The Heart of America Marathon, established in 1960, is the second-oldest continuously running marathon in the United States. This challenging race features a 26.2-mile course that begins and ends at the Boone County History and Culture Center in Columbia, Missouri. Runners navigate approximately 5.5 miles of well-maintained gravel roads and trails, including the scenic Katy Trail along the Missouri River, and face the renowned Easley Hill. The event is known for its community-focused, low-frills atmosphere, emphasizing heat, hills, and humidity as integral parts of the race experience. Source

Area Map

Course Map

FAQ

When is the 2026 Heart of America Marathon?

The 2026 Heart of America Marathon will be held on Monday September 7, 2026.

Is the Heart of America Marathon a Boston Marathon Qualifier?

Yes, the Heart of America Marathon is an official Boston Marathon qualifier.

Historical Weather

Based on 10 years of data
Avg Temp
82°F
L:65° H:82°
RunScore
6
Conditions
Rain Freq
0%
0 of 10 yrs
Wind10mph
Dew64°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
cloudy
62°/74°-
8
2024
clear-night
56°/76°-
8
2023
clear-night
73°/93°-
6
2022
cloudy
70°/74°-
8
2019
fog
61°/80°-
8
2018
cloudy
74°/89°-
7
2017
clear-night
69°/89°-
7
2016
clear-night
65°/87°-
7
2010
clear-night
63°/83°-
7
2006
fog
59°/77°-
8