The 2026 American Heroes Run Half-Marathon has concluded.
American Heroes Run Half-Marathon
Race complete
Longmont, CO, USA · September 12, 2026
American Heroes Run Half-Marathon race day weather
60°at start
75° high
Breezy
Dry
Your goal
0:00:00
Comfortable temps, big temp swing
Mild 60°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 75°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
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Distance: 13.1mi
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About the American Heroes Run Half-Marathon
The American Heroes Run Half Marathon covers 13.1 miles on the Saturday of race weekend, run as laps of a flat 1.05-mile loop at Rogers Grove park in Longmont, Colorado. The flat, fast course passes the start and finish area on every lap.
Race weekend
Friday, September 11
10:10 AM6-Hour Open Start
10:11 AM100 Mile (100.0 mi)
4:11 PM24-Hour
Saturday, September 12
7:00 AM9 Hours & 11 Minutes
7:00 AMMarathon (26.2 mi)
8:46 AMHalf-Marathon (13.1 mi)
9:03 AM9.11-Mile (9.1 mi)9:37 AM5K (3.1 mi)
American Heroes Run Half-Marathon FAQ
When is the 2026 American Heroes Run Half-Marathon?
The 2026 American Heroes Run Half-Marathon will be held on Saturday September 12, 2026.
What will the weather be like for the 2026 American Heroes Run Half-Marathon?
The forecast calls for a high of 76°F and a low of 52°F with a 0% chance of rain.
What is the weather usually like for the American Heroes Run Half-Marathon?
Over the 8 years racecast.io has race-day weather for (2019 to 2026), it averaged 59°F at the start and 70°F by a typical finish. Rain fell during race hours in 1 of those years (2022).
What was the hottest American Heroes Run Half-Marathon?
Of the 8 years on record, 2021 was the warmest, reaching 82°F during race hours. The coldest start was 2022, at 49°F.
What was the windiest American Heroes Run Half-Marathon?
Of the 8 years on record, 2026 was the windiest, with wind averaging 5 mph during race hours. The calmest was 2021, at 0 mph.
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