MIAMI | Miami readers should plan for a humid day with a high near 89°F, heat index values near 103 and showers and thunderstorms likely after noon, according to official National Weather Service forecast data.
Today and tonight
Miami: Today — Mostly sunny, then showers and thunderstorms likely after noon; high near 89°F; east wind 2 to 8 mph; heat index values as high as 103. Chance of precipitation is 60%, with new rainfall amounts between a quarter and half of an inch possible. Tonight — A chance of showers and thunderstorms through the overnight period; mostly cloudy; low near 81°F; northeast wind 3 to 7 mph; heat index values as high as 100 early in the evening. Chance of precipitation is 50%, with new rainfall amounts between a quarter and half of an inch possible.
Planning notes
The combination of humidity, afternoon storms and high heat index values should shape outdoor plans. People headed to beaches, parks, construction sites, outdoor dining, youth camps or evening events should be ready for quick changes. A sunny morning does not rule out lightning or heavy rain later in the day.
Drivers should watch for ponding on roads during thunderstorms. Anyone on or near water should move indoors when thunder is heard. Lightning can strike well away from the heaviest rain, and waiting until a storm is directly overhead is not safe.
Safety reminders
Drink water, use shade, avoid the most strenuous outdoor work during peak heat when possible and check on people who may have trouble cooling their homes. Keep alerts enabled, and use official National Weather Service and local emergency updates for immediate decisions.
Forecasts can change quickly. Readers should check current National Weather Service forecasts, warnings and local emergency information before making travel, school, work or event decisions.
Additional Reporting By: National Weather Service Miami Forecast; National Weather Service Miami; NOAA; Heat.gov