Marco
Island, Florida Current Weather Forecast last updated at: 5:01 pm EDT May 20, 2026
Tonight
Low: 74 °F
Thursday
High: 91 °F
Thursday Night Low: 76 °F
Friday
High: 92 °F
Friday Night Low: 77 °F
Saturday
High: 91 °F
Saturday Night Low: 78 °F
Sunday
High: 90 °F
Sunday Night Low: 78 °F
Chance T-storms then Mostly Clear
Sunny then Chance T-storms
Chance T-storms then Partly Cloudy
Sunny then Chance T-storms
Chance T-storms
Sunny then T-storms Likely
T-storms Likely then Slight Chance T-storms
Sunny then Showers Likely
Showers Likely then Slight Chance T-storms
Tonight: A 50 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 74. East wind 3 to 5 mph. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.