Miami Weather Forecast August 9, 2025

MIAMI, FL — The National Weather Service in Miami has issued a forecast of more widespread showers and thunderstorms with a high rain chance across South Florida today, Saturday, August 9, 2025, due to a slow-moving disturbance over the state.

A few storms may become strong this afternoon, capable of producing damaging winds and heavy downpours. Excessive rainfall could lead to localized urban and poor drainage flooding.

Temperatures will reach the low to mid 90s, with high humidity amplifying heat indices to 100-105°F.

Rainfall chances today are significant, with Palmdale at 84%, Clewiston at 87%, Immokalee at 87%, Naples at 84%, Everglades City at 86%, Miami at 77%, Fort Lauderdale at 85%, West Palm Beach at 87%, Homestead at 86%, and Flamingo at 77%, according to the NWS forecast. These probabilities show increasing shower and thunderstorm activity favoring the western half of South Florida, with potential for localized heavy rainfall.

National Weather Service Miami South Florida Doppler Radar

Miami Weather Forecast

Today

Showers and thunderstorms. Mostly sunny, with a high near 90°F. Heat index values as high as 103°F. East wind 5 to 9 mph. Chance of precipitation is 90%, with higher amounts (up to 2 inches) possible in thunderstorms. New rainfall amounts between a quarter and half of an inch possible.

Tonight

A 50 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 80°F. East wind around 6 mph. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Showers and thunderstorms likely before 8am, then showers and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. High near 90°F. Heat index values as high as 103°F. Southeast wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 81°F. East wind around 6 mph. Chance of precipitation is 60%.

Monday

A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91°F. Southeast wind around 8 mph.

Monday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 81°F. East wind around 6 mph.