Current conditions at
The Florida Keys - Marathon International Airport (KMTH)
Lat: 24.73°NLon: 81.05°WElev: 13ft.
Fair
77°F
25°C
| Humidity | 71% |
| Wind Speed | N 10 G 20 mph |
| Barometer | 29.82 in (1009.9 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 13 Nov 6:53 pm EST |
Extended Forecast for
25 Miles NW Long Key FL
Tonight

Low: 63 °F
Mostly Clear
Saturday

High: 74 °F
Sunny
Saturday Night

Low: 59 °F
Partly Cloudy
Sunday

High: 79 °F
Mostly Sunny
Sunday Night

Low: 67 °F
Mostly Clear
Monday

High: 81 °F
Sunny and
BreezyMonday Night
Low: 69 °F
Partly Cloudy
and Breezy
then Slight
Chance
ShowersTuesday

High: 81 °F
Chance
Showers and
WindyTuesday Night

Low: 70 °F
Chance
Showers and
Breezy
Detailed Forecast
Tonight
Mostly clear, with a low around 63. North wind 9 to 11 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 74. North wind 11 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 59. North wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 79. North wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 67. Northeast wind 9 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 81. Breezy, with an east wind 13 to 20 mph, with gusts as high as 28 mph.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 69. Breezy, with a northeast wind 13 to 16 mph, with gusts as high as 25 mph.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Windy, with an east wind 16 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 70. Breezy, with a northeast wind 11 to 16 mph, with gusts as high as 25 mph.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 81. Breezy.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 70. Breezy.
Thursday
A 20 percent chance of showers. Sunny, with a high near 82. Breezy.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 83.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
25 Miles NW Long Key FL
25.13°N 81.05°W
25.13°N 81.05°W
3:36 pm EST Nov 13, 2026
7pm EST Nov 13, 2026-6pm EST Nov 20, 2026


