Marco
Island, Florida Current Weather Forecast last updated at: 1:26 pm EDT Jun 20, 2026
This Afternoon High: 90 °F
Tonight
Low: 79 °F
Sunday
High: 90 °F
Sunday Night Low: 79 °F
Monday
High: 91 °F
Monday Night Low: 80 °F
Tuesday
High: 91 °F
Tuesday Night Low: 79 °F
Wednesday
High: 91 °F
Chance T-storms
Partly Cloudy
Sunny
Mostly Clear
Sunny then Slight Chance T-storms
Slight Chance T-storms then Partly Cloudy
Mostly Sunny then Slight Chance T-storms
Slight Chance T-storms
Mostly Sunny then Chance T-storms
This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly sunny, with a high near 90. Heat index values as high as 103. West wind around 8 mph.