Fiesta Key Weather Forecast
- 80
- 86
Mostly Sunny
- 80
- 87
Partly Sunny
- 80
- 87
Mostly Sunny
- 80
- 89
Slight Chance Thunderstorms
- 81
- 88
Partly Sunny
- 80
- 88
Slight Chance Thunderstorms
Today 19 May Monroe Middle Keys
Mostly sunny. Highs in the mid to upper 80s. East to southeast Winds near 10 Mph, decreasing to 5 to 10 Mph.
Tonight 19 May Monroe Middle Keys
Partly cloudy. Lows near 80. East to southeast Winds near 10 Mph.
Fiesta Key Temperature Statistics
May Temperature
The Florida Keys - Marathon International Airport (17.4 miles)
Lowest 12 May, 2025
74.6 °FAverage May
81.9 °FHighest 13 May, 2025
87.7 °F
Climate (2020–Present)
The Florida Keys - Marathon International Airport (17.4 miles)
Average Low 2020–2025
75.3 °FAverage 2020–2025
80 °FAverage High 2020–2025
85.2 °F