Wednesday, July 8, 2026, Miami woke up to a muggy, mostly clear morning, with temperatures already in the mid-80s and humidity cranking the discomfort level higher. The National Weather Service has issued a Heat Advisory for coastal Miami-Dade and Broward counties from 11 a.m. to 6 p.m. EDT, warning that heat-index values could top 105°F this afternoon. With little to no rain expected, the mix of heat and humidity will make midday outdoor activity hazardous.
What To Expect Wednesday
Afternoon highs are expected to land around 90°F, but it will feel worse, with heat-index readings in the 105–110°F range in some spots. Southeast winds should run about 8–13 mph during the day, increasing to 12–15 mph tonight with occasional gusts near the coast. Little measurable precipitation is anticipated through the evening, according to the National Weather Service.
Plan For The Heat
Between late morning and early evening, treat the heat advisory window like a red flag. Drink plenty of water, spend time in air conditioning whenever possible, and avoid strenuous outdoor work during the 11 a.m. to 6 p.m. period. If your home cooling is unreliable or nonexistent, the city and county operate public cooling centers, including the Stephen P. Clark Government Center, where people can get out of the heat. For a full list of locations and hours, see the City of Miami.
Outdoors, Events, And Commutes
With rain chances low, most outdoor events and commutes are still expected to go on, but organizers and attendees should plan for serious discomfort during the advisory hours. Add extra water stations and shade where possible, shift the heaviest activities to early morning or evening, and keep a close eye on children, older adults, and pets. This post was updated after the advisory was issued; for background on the recent stretch of oppressive heat, see our earlier coverage on how Miami already feels like a steam room.
If someone shows signs of heat exhaustion, such as heavy sweating, weakness, or faintness, or signs of heat stroke, including confusion or loss of consciousness, seek medical help immediately and call 911. This page will be updated if the advisory changes.
