This summer’s extreme heat is bringing new safety rules to Texas schools as the University Interscholastic League requires Wet Bulb Globe Temperature monitoring before and during outdoor practices. The readings help coaches decide when to shorten workouts, add hydration breaks, or halt activities to protect student-athletes from heat-related illnesses.
The UIL Legislative Council approved the policy in June 2026, with the requirement taking effect August 1 pending final approval. WBGT measures air temperature, humidity, wind speed, and solar radiation to provide a more accurate picture of heat stress than traditional thermometers. Schools must use approved devices or services to track conditions in real time during practices for athletics and marching band.
The move comes as Texas faces increasingly intense summer heat, with heat indices frequently exceeding 100 degrees. Exertional heat stroke remains a leading cause of death among young athletes nationwide, prompting the UIL to adopt guidelines from the American College of Sports Medicine. The protocols set activity modification thresholds based on WBGT levels, prioritizing safety without unnecessarily canceling practices.
It’s official: The University Interscholastic League (UIL) has voted to make wet bulb globe temperature (WBGT) the new standard for measuring heat stress across all Texas high school athletic and band programs.
— Perry Weather (@perryweather) June 16, 2026
A change like this raises a lot of questions, and we’re answering… pic.twitter.com/x5vI8YK3U8
Local school districts across North Texas are preparing for the change, investing in monitoring equipment and training staff. Parents and coaches welcome the data-driven approach, which allows more informed decisions during dangerous conditions while supporting student participation in sports and band programs that build teamwork and discipline.
No specific incidents prompted the rule, but it aligns with national efforts to address climate-driven heat risks in youth activities. Community impact includes better protection for thousands of North Texas students participating in fall sports, potentially reducing emergency room visits and long-term health effects from heat exposure.
Wet Bulb Globe Temperature (WBGT) is a special way to measure how hot and sticky it feels outside, especially when you're playing sports or working hard in the heat.
Imagine it's not just about how hot the air is on a thermometer. WBGT also checks:
The "wet bulb" part: How humid (moist) the air is — like how sweaty you get and how hard it is for your body to cool down by sweating.-
The "globe" part: How much direct sunlight is beating down on you.-
Air temperature and wind: How hot the air feels and if there's a breeze to help you cool off.
It's like a "feels-like" heat score for your body. Coaches and schools use it to decide:
Is it safe to keep practicing football outside, or should we take more water breaks, shorten practice, or go inside?"
High WBGT numbers mean "extra careful — the heat could make you sick fast!"
It's a smart tool to keep kids and athletes safe during hot Texas summers.
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