Miami is starting Wednesday with clear skies, thick humidity and temperatures near 82 degrees before sunrise. That calm opening will give way to another hot day, with scattered thunderstorms becoming a bigger part of the forecast as the weekend approaches.
Storm Chances Build Through Thursday
Wednesday’s high should reach around 90 degrees, while the heat index could climb to 103. Showers and thunderstorms may develop from late morning into the early evening, with a 50% chance of rain and the possibility of lightning, brief heavy downpours and gusty winds.
The National Weather Service Miami office expects a similar setup Thursday, when temperatures will again reach the upper 80s to around 90 and the heat index could hit 104. Southeast winds around 10 mph will keep the air moving, but probably not enough to make the afternoon feel fresh.
Weekend Forecast Gets Noticeably Wetter
Friday brings mostly sunny intervals with a 40% chance of showers and thunderstorms, mainly after the morning. The bigger shift arrives Saturday, when rain and storm chances rise to 70% during the day and remain elevated Saturday night.
Showers and thunderstorms are likely Sunday through Tuesday, with daily rain chances near 60% and highs hovering around 89 to 90 degrees. There should still be plenty of sun between storms, but outdoor plans will need some flexibility.
Heavy Rain Possible In Stronger Storms
The most active storms are expected over interior and southwestern parts of South Florida, though Miami can still see downpours and lightning. Localized flooding is possible where storms repeatedly track over the same areas, while no watches, warnings or advisories are currently in effect.
Overnight lows will stay in the low 80s, keeping the region warm and muggy after sunset. Anyone caught outside during a storm should move indoors when thunder is heard, especially around beaches, pools and open parks.
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