Marco
Island, Florida Current Weather Forecast last updated at: 2:31 pm EDT Jul 22, 2026
This Afternoon High: 91 °F
Tonight
Low: 77 °F
Thursday
High: 93 °F
Thursday Night Low: 77 °F
Friday
High: 91 °F
Friday Night Low: 78 °F
Saturday
High: 91 °F
Saturday Night Low: 81 °F
Sunday
High: 89 °F
Chance T-storms
Chance T-storms then Mostly Clear
Sunny then Chance T-storms
Chance T-storms
Slight Chance T-storms then T-storms Likely
T-storms Likely then Slight Chance T-storms
Sunny then Chance T-storms
Chance T-storms
Chance T-storms
This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 91. Heat index values as high as 103. South wind around 11 mph, with gusts as high as 18 mph.