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Current conditions at
The Florida Keys - Marathon International Airport (KMTH)
Lat: 24.73°NLon: 81.05°WElev: 13ft.
Fair
84°F
29°C
| Humidity | 77% |
| Wind Speed | E 12 mph |
| Barometer | 29.98 in (1015.3 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 93°F (34°C) |
| Last update | 15 Oct 1:53 am EDT |
Extended Forecast for
25 Miles NNW Long Key FL
Overnight

Low: 76 °F
Slight Chance
T-stormsThursday

High: 89 °F
Chance
T-stormsThursday Night

Low: 77 °F
Chance
T-stormsFriday
High: 88 °F
Chance
Showers then
Chance
T-stormsFriday Night

Low: 76 °F
Chance
T-stormsSaturday
High: 87 °F
Chance
T-storms then
Showers
LikelySaturday Night
Low: 75 °F
Showers
Likely then
Chance
T-stormsSunday

High: 84 °F
Showers
Likely and
BreezySunday Night

Low: 75 °F
Chance
T-storms and
Windy
Detailed Forecast
Overnight
A 20 percent chance of showers and thunderstorms before 5am. Partly cloudy, with a low around 76. Northeast wind around 5 mph.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89. East wind 5 to 10 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 77. East wind 5 to 8 mph. Chance of precipitation is 30%.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88. Southeast wind 5 to 8 mph.
Friday Night
A chance of showers and thunderstorms before 5am, then a slight chance of showers. Partly cloudy, with a low around 76. Light northeast wind. Chance of precipitation is 40%.
Saturday
A slight chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Light northeast wind. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 75. Northeast wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Breezy, with an east wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Windy, with a northeast wind 16 to 21 mph, with gusts as high as 28 mph.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Windy. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Breezy.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. Breezy.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Breezy.
Wednesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 85. Breezy.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
25 Miles NNW Long Key FL
25.17°N 80.97°W
25.17°N 80.97°W
5:17 pm EDT Oct 14, 2026
2am EDT Oct 15, 2026-6pm EDT Oct 21, 2026


