South Texas International Marathon
Race Day Weather
Warm start, rising heat
Runners will face temperatures rising from 64°F at the start to a high of 87°F. With humidity at 78%, it's crucial to adjust pacing and hydrate frequently. Light winds from the WNW will have minimal impact, allowing runners to focus on managing the heat effectively.
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Race Info
South Texas International Marathon’s (STIM) unique course will take runners through four cities and two counties! This Boston Qualifier marathon will make its start at the “Heart of the Valley”, Donna, Texas. Runners will then cross through historic downtown areas of Weslaco, Mercedes and La Feria. The grand finish line will be at the Mercedes FEMA Dome in Mercedes, Texas.