Real-time heat stress data from Perry Weather stations across schools, worksites, parks, campuses, and facilities nationwide.
Perry Weather operates the world’s largest connected network of WBGT monitoring stations, giving organizations real-time visibility into heat stress where activity actually happens. Not from the nearest airport. Not from a generic forecast. From on-site stations connected to one weather safety platform.
Each dot is one of 3,100+ connected on-site Perry Weather stations, mapped live across all 50 states. From high school practice fields and college stadiums to jobsites and manufacturing plants, this is the largest connected WBGT mesonet in the world.
Heat stress is local.
Heat safety decisions are made at a specific location — not at the nearest airport, not from a regional forecast. The data behind those decisions should come from the same place.
Perry Weather stations are installed where organizations need real-time visibility — on the practice field, the campus, the jobsite, the plant, the facility — so the WBGT reading reflects the location organizations actually operate. It’s the foundation of our heat stress and WBGT monitoring platform.
When heat safety decisions affect practice schedules, work/rest cycles, NFHS-aligned policies, and OSHA documentation, location-specific data matters.
Air temperature only tells part of the story.
Heat index adds humidity, but it is generally based on shaded conditions and does not fully account for direct sunlight, wind, sun angle, or the radiant heat present in outdoor activity environments.
WBGT goes further. It accounts for the environmental factors that determine how hard it is for the body to cool itself during outdoor activity:
That makes WBGT critical for high school, collegiate, and professional athletics, construction, manufacturing, and any OSHA-regulated industry responsible for people exposed to heat. For a deeper breakdown, read what WBGT is and how it’s calculated.
A handheld WBGT device can help one person make one decision in one location. A connected WBGT platform can help an entire organization monitor, alert, respond, and document heat safety conditions across every location it manages.
That is the shift Perry Weather is built for.
As governing bodies and EHS regulators move toward WBGT-based guidelines — including the OSHA National Emphasis Program for heat stress and the broader federal heat-safety rules — organizations need infrastructure, not a number.
Perry Weather brings together on-site weather stations, WBGT monitoring, real-time alerts, policy-based thresholds, and historical records in one connected platform — so WBGT becomes part of daily operations, not just a reading someone checks when conditions feel hot.
Perry Weather’s WBGT network is more than a collection of weather stations. It is a connected heat safety data layer built around real-world activity environments.
These are the places where heat decisions happen. The larger the network, the more valuable the data becomes — across regions, activity types, and operating environments. That data helps organizations understand:
The result is a connected mesonet that helps teams move faster, act more consistently, and manage heat risk with greater confidence — across the environments where athletes are practicing and competing, and where workers are operating under OSHA-regulated heat conditions.
Perry Weather isn’t just the largest WBGT network. It’s the operating layer that governing bodies, researchers, and EHS regulators are building heat safety around.
Perry Weather partners with the National Federation of State High School Associations to advance heat safety standards and protect student-athletes across state high school associations nationwide.
Read the announcement
In partnership with the Korey Stringer Institute, Perry Weather is helping build one of the country’s leading heat-research labs at the University of North Florida — turning field data into peer-reviewed science.
See the partnership
Built to support the upcoming OSHA National Emphasis Program for heat stress and the federal heat-safety rules taking shape for outdoor work — with on-site WBGT readings, automated alerts, and audit-ready records.
Read about OSHA NEP 2026The organizations governed by NFHS heat-acclimatization rules and OSHA heat-stress standards rely on Perry Weather to monitor, alert, and document.
