Hot, Humid Weather Returns to Brevard County With Heat Indices Up to 107 Degrees

By  //  June 22, 2026

20-30% chance of showers and thunderstorms across East Central Florida

Brevard County can expect another hot and humid day Monday as temperatures climb into the lower 90s and heat index values soar well above 100 degrees, according to the National Weather Service in Melbourne.

BREVARD COUNTY • MELBOURNE, FLORIDA – Brevard County can expect another hot and humid day Monday as temperatures climb into the lower 90s and heat index values soar well above 100 degrees, according to the National Weather Service in Melbourne.

Forecasters are calling for only a 20 to 30 percent chance of showers and thunderstorms across East Central Florida, with the greatest potential for storm development occurring inland during the late afternoon as sea breezes collide.

A few storms could drift back toward the Space Coast during the early evening hours.

For Brevard County, highs are expected to reach around 93 degrees in Melbourne and near 94 degrees in areas farther north, while the combination of heat and humidity will make it feel much hotter.

Peak heat index values are forecast to range between 102 and 107 degrees during the afternoon hours.

While rain chances remain lower than recent days, any storms that do develop could still become strong enough to produce frequent lightning, wind gusts between 40 and 50 mph, and localized heavy rainfall capable of causing minor flooding.

The hot weather pattern is expected to persist throughout the week, with above-normal temperatures continuing across the region.

The National Weather Service indicates a widespread Moderate to Major HeatRisk through at least Friday, meaning heat-sensitive individuals and those without adequate cooling or hydration could be impacted.

Melbourne faces a 90 percent chance of experiencing heat index values above 105 degrees on Monday and Tuesday, before the risk gradually decreases later in the week.

Officials encourage residents to take precautions during the hottest part of the day by staying hydrated, wearing lightweight and light-colored clothing, taking frequent breaks in air-conditioned spaces or shade, and limiting strenuous outdoor activities between 10 a.m. and 4 p.m.

Anyone spending time outdoors should remain alert for signs of heat-related illness and seek relief immediately if symptoms such as dizziness, nausea, or excessive fatigue develop.