Heat Safety Week Begins as Central Indiana Heads Toward Summer Risk Season
NWS Indianapolis is using Heat Safety Week to focus attention on heat index, HeatRisk, hydration and summer hazards for workers, schools and families.
INDIANAPOLIS | Central Indiana is still in late spring, but the National Weather Service is already asking residents to think like summer.
NWS Indianapolis is observing Heat Safety Week from 18 May through 22 May 2026, with public information focused on heat index, HeatRisk, hydration and the groups most vulnerable when temperatures and humidity climb.
This is not a daily forecast article and it is not a severe weather alert. It is a practical reminder that heat becomes dangerous before it becomes dramatic.
Heat risk is not measured by temperature alone. Humidity, sun exposure, overnight lows, health conditions, age, outdoor work and access to cooling all affect whether a warm day becomes a medical emergency.
Outdoor workers, student athletes, marching bands, construction crews, delivery drivers and event staff can face risk early in the warm season because the body has not fully adjusted to heat.
Children, elderly residents and people with chronic illness need special attention. So do pets. A parked car, a shaded patio without water or a long walk in humid conditions can become dangerous faster than people expect.
Central Indiana does not need a record heat wave for heat safety to matter. The first hot stretch of the season can catch people unprepared.
Additional Reporting By: National Weather Service Indianapolis; NOAA; CGN News Staff
What this means
This matters because heat is one of the most dangerous weather hazards, and early-season heat can catch people before they are acclimated.
Central Indiana residents should use Heat Safety Week to plan hydration, cooling, outdoor work timing and checks on vulnerable neighbors before the strongest summer heat arrives.