Thunderstorms, Excessive Rainfall For South Florida

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 10, 2025, with rain chances favoring the east coast metro areas amid near-normal temperatures.

Numerous showers and thunderstorms will develop across most of South Florida this afternoon into this evening. Periods of heavy downpours with high rainfall rates could lead to localized flooding especially across the east coast metro areas. In general, 1-2 inches of rain is anticipated this afternoon, however, there is a 1 in 10 chance of 3-4+ inches where multiple rounds of heavy downpours occur.

Temperatures will reach 90 to 94°F, with high humidity amplifying heat indices over 100°F, potentially approaching 108°F.

Rainfall chances today are moderate to high, with Palmdale at 79%, Clewiston at 81%, West Palm Beach at 76%, Immokalee at 80%, Naples at 71%, Everglades City at 71%, Fort Lauderdale at 75%, Miami at 70%, Homestead at 69%, and Flamingo at 54%, 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
• Late afternoon into evening: Increased coverage of showers and thunderstorms

Possible Hazards:

• Heavy downpours with poor visibility
• Localized urban flooding, especially in urban areas and roadways
• Gusty, erratic winds from strong storms up to 35 mph
• Frequent lightning strikes

Miami Weather Forecast

Today

Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 90°F. Heat index values as high as 103°F. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 82°F. Southeast wind around 6 mph.

Thursday

A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91°F. Heat index values as high as 103°F. Southeast wind 6 to 10 mph.

Thursday Night

A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 82°F. Southeast wind 3 to 6 mph.

Friday

A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91°F. Light and variable wind becoming southeast 5 to 7 mph in the morning.

Friday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 82°F. Southeast wind around 6 mph.