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Current conditions at
The Florida Keys - Marathon International Airport (KMTH)
Lat: 24.73°NLon: 81.05°WElev: 13ft.
Fair
59°F
15°C
| Humidity | 38% |
| Wind Speed | Vrbl 6 mph |
| Barometer | 30.20 in (1022.4 mb) |
| Dewpoint | 33°F (1°C) |
| Visibility | 10.00 mi |
| Last update | 24 Feb 2:53 pm EST |
Extended Forecast for
23 Miles NNW Long Key FL
This Afternoon

High: 67 °F
Sunny
Tonight

Low: 51 °F
Mostly Clear
Wednesday

High: 73 °F
Sunny
Wednesday Night

Low: 62 °F
Mostly Clear
Thursday

High: 79 °F
Sunny
Thursday Night

Low: 67 °F
Mostly Clear
Friday

High: 80 °F
Sunny
Friday Night

Low: 67 °F
Chance
ShowersSaturday

High: 81 °F
Chance
Showers
Detailed Forecast
This Afternoon
Sunny, with a high near 67. Northwest wind around 6 mph.
Tonight
Mostly clear, with a low around 51. Calm wind becoming north around 5 mph after midnight.
Wednesday
Sunny, with a high near 73. Northeast wind 6 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 62. Southeast wind 6 to 9 mph.
Thursday
Sunny, with a high near 79. Southeast wind 9 to 11 mph.
Thursday Night
Mostly clear, with a low around 67. East wind around 8 mph.
Friday
Sunny, with a high near 80. Southeast wind 7 to 10 mph.
Friday Night
A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 67. Southeast wind around 8 mph.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. South wind 7 to 9 mph. Chance of precipitation is 40%.
Saturday Night
A 30 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 66.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 65.
Monday
A 20 percent chance of showers. Sunny, with a high near 81.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
23 Miles NNW Long Key FL
25.14°N 80.92°W
25.14°N 80.92°W
2:57 pm EST Feb 24, 2026
3pm EST Feb 24, 2026-6pm EST Mar 2, 2026


