The El Monte Union High School District (EMUHSD) installed Perry Weather stations at all five district high schools during the 2025–2026 school year to enhance campus safety and support informed decision-making for outdoor activities and athletics. Perry Weather provides real-time monitoring of lightning, rainfall, air quality, heat stress, and Wet Bulb Globe Temperature (WBGT) conditions, allowing school administrators, athletic trainers, coaches, and staff to make timely weather-related safety decisions.

The district’s use of Perry Weather supports compliance with current CIF heat illness prevention guidelines^[1,2], CIF air quality guidelines^[3], and California state law regarding student-athlete safety^[4,5]. These regulations emphasize the use of on-site weather monitoring to accurately assess environmental conditions and establish thresholds for modifying, limiting, postponing, or canceling outdoor athletic activities during extreme conditions. They also reinforce best practices related to hydration, acclimatization periods, cooling zones, emergency response procedures, and heat illness prevention training for coaches, staff, and student-athletes. Perry Weather’s automated alerts and real-time weather monitoring help EMUHSD proactively respond to lightning and severe weather conditions, further supporting the district’s commitment to maintaining safe learning and athletic environments year-round.

Below, you will find the current WBGT/heat stress, air quality (AQI), and lightning/rainfall conditions at El Monte High School, alongside our activity modification guidelines.

Citations

1. California Interscholastic Federation – Heat Illness, California Interscholastic Federation. (n.d.). Heat illness. California Interscholastic Federation. https://cifstate.prestosports.com/sports-medicine/heat_illness/
2. CIF Extreme Heat and Air Quality Policy PDF, California Interscholastic Federation. (n.d.). Extreme heat and air quality policy [PDF]. California Interscholastic Federation. https://cifstate.prestosports.com/governance/constitution/EXTREME_HEAT_AND_AIR_QUALITY_POLICY.pdf
3. California Interscholastic Federation – Air Quality, California Interscholastic Federation. (n.d.). Air quality. California Interscholastic Federation. https://cifstate.prestosports.com/sports-medicine/aqi
4. California Education Code § 35179.8 – California Public Law, California Legislative Information. (n.d.). California Education Code § 35179.8. California Public Law. https://california.public.law/codes/education_code_section_35179.8
5. California Education Code § 35179.8 – Justia, Justia US Law. (n.d.). California Education Code § 35179.8. Justia. https://law.justia.com/codes/california/code-edc/title-2/division-3/part-21/chapter-2/article-4-5/section-35179-8/