A heat advisory covers the Walt Disney World area today, Thursday, June 18, 2026, as high humidity pushes afternoon heat index values over 105 across east central Florida.
The National Weather Service Melbourne office issued the advisory from 11 a.m. to 7 p.m. EDT. The advisory covers Orange and Osceola counties, which include Walt Disney World, Universal Orlando Resort, SeaWorld Orlando, and the main Orlando tourism corridor.
Orlando Parks Heat Advisory
Forecasters expect temperatures in the mid to upper 90s, with humidity making it feel hotter during the busiest part of the park day. The same forecast also calls for isolated to numerous showers and lightning storms this afternoon and evening.
Guests with long outdoor plans should build in air-conditioned breaks, watch for lightning delays, and check official park apps for entertainment, pool, transportation, or attraction changes if storms move through the area.
Source: National Weather Service Melbourne and the June 18 Area Forecast Discussion.