MIAMI, FL — The National Weather Service in Miami has issued a forecast of scattered to numerous showers and thunderstorms across South Florida today, Wednesday, September 03, 2025, with rain chances favoring the east coast metro and southern areas amid near-normal temperatures. A few storms may become strong this afternoon, capable of producing gusty winds and heavy downpours. Excessive rainfall could lead to localized urban and poor drainage flooding. There is a Marginal Risk of Excessive Rainfall issued by the Weather Prediction Center. Temperatures will reach around 90°F, with high humidity amplifying heat indices over 100°F, potentially approaching 106°F. [caption id="" align="alignnone" width="1024"] National Weather Service Miami South Florida Heat Indices[/caption] Rainfall chances today are moderate to high, with Palmdale at 61%, Clewiston at 68%, West Palm Beach at 76%, Immokalee at 70%, Naples at 70%, Everglades City at 76%, Fort Lauderdale at 77%, Miami at 78%, Homestead at 81%, and Flamingo at 78%, according to the NWS forecast. These probabilities show scattered to numerous shower and thunderstorm activity across South Florida, with potential for localized heavy rainfall. Storm Timing: Morning: Widely scattered thunderstorms Afternoon into early evening: Increased coverage of showers and thunderstorms, mainly 2-8 PM Possible Hazards: Heavy Downpours Localized urban flooding Gusty winds from strong storms National Weather Service Miami South Florida Doppler Radar Miami Weather Forecast Today Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 90°F. Heat index values as high as 103°F. Southwest wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible, with isolated higher amounts. Tonight Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 78°F. West wind around 6 mph. Chance of precipitation is 80%. Thursday Showers and thunderstorms. High near 90°F. Southwest wind 6 to 10 mph. Chance of precipitation is 80%. Thursday Night Showers and thunderstorms, mainly before 8pm. Low around 78°F. West wind around 6 mph. Chance of precipitation is 80%. Friday Showers and thunderstorms likely. Partly sunny, with a high near 90°F. Chance of precipitation is 70%. Friday Night A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78°F.