Miami is starting Sunday, June 28, already in the sauna, with muggy and mostly clear skies and temperatures near 82°F at Miami International Airport early this morning. By mid-afternoon, the high should reach around 89°F, but with humidity cranked up, it will feel more like the low 100s. There is a slight chance of showers and isolated thunderstorms this morning, mainly inland and to the west.
Afternoon Storms Favor Inland Areas
As the sea breeze pushes inland, its collision with the west-coast breeze will be the main spark for pop-up storms Sunday afternoon, June 28. The best chances run from about 1 p.m. to 6 p.m., especially over interior and western neighborhoods. Any thunderstorms that do bubble up could bring gusty winds, frequent cloud-to-ground lightning and brief heavy downpours that may slow commutes and cause localized street ponding. These details line up with the forecast and discussion from the National Weather Service in Miami.
Heat Risk And Planning Ahead
The bigger headline is the heat. With plenty of humidity in place, heat-index readings could push into the 100–105°F range on Sunday, June 28, and stay elevated into Monday before a brief push of drier Saharan air trims rain chances late Sunday into Monday. The forecast office highlights a Moderate to Major heat risk for much of the area through the weekend, meaning anyone working or playing outside should take frequent breaks and stay hydrated. Shift strenuous activity to the morning or evening hours, keep a close eye on children and pets, and spend time in air-conditioned spaces during the peak afternoon heat.
Beach, Boating And Commute Notes
On the water, seas should run about 2–3 feet outside of thunderstorms, but any coastal storm cells can quickly kick up choppy surf and raise the rip-current risk. Lifeguard flags and posted beach notices remain the best local guide. Our Saturday post on the recent hot stretch has more background on the ongoing heat and cooling-site options. For afternoon outdoor plans, keep things flexible and check radar if you are heading inland, where the storms will be most likely.
This story will be updated if any heat advisories are issued. For the latest official forecast, check the National Weather Service in Miami and local media before heading out.
