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Current conditions at
The Florida Keys - Marathon International Airport (KMTH)
Lat: 24.73°NLon: 81.05°WElev: 13ft.
Fair
83°F
28°C
| Humidity | 72% |
| Wind Speed | NE 9 mph |
| Barometer | 30.00 in (1015.9 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 89°F (32°C) |
| Last update | 13 Oct 11:53 pm EDT |
Extended Forecast for
28 Miles NNW Long Key FL
Overnight

Low: 74 °F
Mostly Clear
Wednesday
High: 88 °F
Slight Chance
T-storms then
Chance
T-stormsWednesday Night

Low: 76 °F
Chance
T-stormsThursday
High: 89 °F
Chance
Showers then
Chance
T-stormsThursday Night
Low: 76 °F
Chance
T-storms then
Chance
ShowersFriday

High: 89 °F
Chance
T-stormsFriday Night

Low: 76 °F
Chance
T-stormsSaturday
High: 87 °F
Chance
T-storms then
ShowersSaturday Night
Low: 75 °F
Showers then
Chance
T-storms
Detailed Forecast
Overnight
Mostly clear, with a low around 74. Northeast wind 5 to 7 mph.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Increasing clouds, with a high near 88. East wind 6 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 5am, then a slight chance of showers. Mostly clear, with a low around 76. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday
A chance of showers, with thunderstorms also possible after 11am. Sunny, with a high near 89. East wind 5 to 10 mph. Chance of precipitation is 40%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 76. East wind 3 to 7 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Southeast wind 3 to 6 mph.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 76. Calm wind.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 87. East wind 3 to 7 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Low around 75. Northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday
Showers and possibly a thunderstorm. High near 85. Windy. Chance of precipitation is 80%.
Sunday Night
Showers and thunderstorms. Low around 75. Breezy. Chance of precipitation is 80%.
Monday
Showers and thunderstorms. High near 85. Windy. Chance of precipitation is 80%.
Monday Night
Showers and thunderstorms. Low around 74. Breezy. Chance of precipitation is 80%.
Tuesday
Showers and thunderstorms likely. Mostly sunny, with a high near 86. Breezy. Chance of precipitation is 60%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
28 Miles NNW Long Key FL
25.2°N 81.02°W
25.2°N 81.02°W
5:01 pm EDT Oct 13, 2026
12am EDT Oct 14, 2026-6pm EDT Oct 20, 2026


