Vaca Key - Fat Deer Key Bridge Weather Forecast
- 84
- 89
Slight Chance Thunderstorms
- 83
- 89
Slight Chance Thunderstorms
- 84
- 89
Mostly Sunny
- 83
- 89
Chance Thunderstorms
- 83
- 89
Chance Thunderstorms
- 83
- 89
Chance Thunderstorms
- 83
- 89
Chance Thunderstorms
Today 20 Aug Monroe Middle Keys
Partly sunny with a chance of Showers and a slight chance of Thunderstorms. Highs near 90. Southwest Winds 5 to 10 Mph. Chance of rain 30 percent.
Tonight 20 Aug Monroe Middle Keys
Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the lower 80s. Variable Winds near 5 Mph, becoming southeast to south. Chance of rain 10 percent.
Vaca Key - Fat Deer Key Bridge Temperature Statistics
August Temperature
The Florida Keys - Marathon International Airport (0.6 miles)
Lowest 12 August, 2026
77 °FAverage August
86.2 °FHighest 1 August, 2026
91.7 °F
Climate (2021–2026)
The Florida Keys - Marathon International Airport (0.6 miles)
Average Low 2021–2026
75.4 °FAverage 2021–2026
80.1 °FAverage High 2021–2026
85.1 °F