Marco
Island, Florida Current Weather Forecast last updated at: 3:47 am EDT May 21, 2026
Today
High: 90 °F
Tonight
Low: 76 °F
Friday
High: 91 °F
Friday Night Low: 77 °F
Saturday
High: 91 °F
Saturday Night Low: 77 °F
Sunday
High: 92 °F
Sunday Night Low: 78 °F
Memorial Day High: 92 °F
Chance T-storms
Chance T-storms then Partly Cloudy
Mostly Sunny then Chance T-storms
Chance T-storms then Mostly Clear
Sunny then Chance T-storms
Chance T-storms then Chance Showers
Sunny then Showers Likely
Showers Likely then Partly Cloudy
Sunny then Chance T-storms
Today: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Sunny, with a high near 90. Southeast wind around 9 mph becoming south in the afternoon.