Marco
Island, Florida Current Weather Forecast last updated at: 4:02 am EDT Jun 17, 2026
Today
High: 91 °F
Tonight
Low: 81 °F
Thursday
High: 91 °F
Thursday Night Low: 81 °F
Juneteenth
High: 91 °F
Friday Night Low: 79 °F
Saturday
High: 90 °F
Saturday Night Low: 79 °F
Sunday
High: 91 °F
Mostly Sunny
Partly Cloudy
Slight Chance T-storms then Mostly Sunny
Partly Cloudy
Sunny then Slight Chance T-storms
Slight Chance T-storms
Chance T-storms
Chance T-storms
Slight Chance T-storms
Today: Mostly sunny, with a high near 91. Heat index values as high as 106. Southeast wind 5 to 14 mph becoming south in the afternoon. Winds could gust as high as 22 mph.