Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

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

Fair

75°F

24°C

Humidity 84%
Wind Speed Calm
Barometer 29.91 in (1012.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 30 Apr 2:53 am EDT
Detailed forecast for

Monroe Middle Keys

Tonight
Mostly clear. Lows in the mid 70s. Southeast winds near 5 mph, becoming southeast to south.
Thursday
Mostly sunny. Highs in the mid 80s. Southeast to south winds near 5 mph.
Thursday Night
Mostly clear. Lows in the mid 70s. Southeast winds near 5 mph.
Friday
Mostly sunny. Highs in the mid 80s. Southeast winds 5 to 10 mph.
Friday Night
Mostly clear. Lows in the mid to upper 70s. Southeast winds 5 to 10 mph, increasing to near 10 mph.
Saturday
Mostly clear. Highs in the mid 80s.
Saturday Night
Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid to upper 70s. Chance of rain 20 percent.
Sunday
Partly sunny with a chance of showers and thunderstorms. Highs in the lower to mid 80s. Chance of rain 40 percent.
Sunday Night
Showers likely with a chance of thunderstorms. lows in the mid 70s. Chance of rain 60 percent.
Monday
Partly sunny with a chance of showers and thunderstorms. Highs in the lower to mid 80s. Chance of rain 30 percent.
Monday Night
Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 40 percent.
Tuesday
Partly sunny with a slight chance of showers and thunderstorms. Highs in the lower to mid 80s. Chance of rain 20 percent.
Tuesday Night
Partly cloudy with a slight slight chance of showers. Lows in the mid to upper 70s. Chance of rain 10 percent.
Wednesday
Mostly sunny. Highs in the mid 80s.



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402 PM EDT Wed Apr 29 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database