Marco
Island, Florida Current Weather Forecast last updated at: 2:31 pm EDT May 23, 2026
This Afternoon High: 90 °F
Tonight
Low: 76 °F
Sunday
High: 91 °F
Sunday Night Low: 77 °F
Memorial Day High: 92 °F
Monday Night Low: 78 °F
Tuesday
High: 91 °F
Tuesday Night Low: 78 °F
Wednesday
High: 87 °F
Chance T-storms
Chance T-storms then Partly Cloudy
Sunny then Chance T-storms
Chance T-storms then Mostly Clear
Sunny then Chance T-storms
Chance T-storms
Chance T-storms
Chance T-storms
T-storms Likely
This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 102. South wind around 11 mph, with gusts as high as 18 mph.