Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73° N Lon: 81.05° W Elev: 13 ft.

Mostly Cloudy

84°F

29°C

Humidity 77%
Wind Speed SW 3 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 29 Jul 12:53 am EDT
Detailed forecast for

Monroe Middle Keys

Tonight
Mostly cloudy this evening, becoming partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 80s. Southwest to west winds near 10 mph. Chance of rain 10 percent.
Wednesday
Mostly sunny with a slight chance of showers and thunderstorms. Highs near 90. Southwest to west winds 10 to 15 mph. Chance of rain 10 percent.
Wednesday Night
Mostly clear. Lows in the lower 80s. West winds near 10 mph, becoming southwest and decreasing to near 5 mph.
Thursday
Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. South to southwest winds near 5 mph, becoming west. Chance of rain 10 percent.
Thursday Night
Partly cloudy. Lows in the lower 80s. Southwest winds near 5 mph.
Friday
Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 10 percent.
Friday Night
Mostly cloudy. Lows in the mid 80s.
Saturday
Mostly sunny. Highs in the lower 90s.
Saturday Night
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 80s.
Sunday
Mostly sunny. Highs in the lower 90s.
Sunday Night
Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of showers. Lows in the mid 80s. chance of rain 10 percent.
Monday
Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 10 percent.
Monday Night
Partly cloudy with a chance of showers and thunderstorms. Lows in the mid 80s. Chance of rain 30 percent.
Tuesday
Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent.



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356 PM EDT Tue Jul 28 2026
 
 

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