Current conditions at
The Florida Keys - Marathon International Airport (KMTH)
Lat: 24.73°NLon: 81.05°WElev: 13ft.
A Few Clouds
84°F
29°C
| Humidity | 77% |
| Wind Speed | SW 5 mph |
| Barometer | 29.93 in (1013.4 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 93°F (34°C) |
| Last update | 29 Jul 2:53 am EDT |
Extended Forecast for
23 Miles NNW Long Key FL
Overnight
Low: 79 °F
Mostly Cloudy
Wednesday
High: 90 °F
Slight Chance
T-stormsWednesday Night
Low: 79 °F
Partly Cloudy
Thursday
High: 90 °F
Mostly Sunny
Thursday Night
Low: 79 °F
Partly Cloudy
Friday
High: 90 °F
Mostly Sunny
Friday Night
Low: 78 °F
Partly Cloudy
Saturday
High: 90 °F
Partly Sunny
Saturday Night
Low: 81 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 79. Southwest wind around 7 mph.
Wednesday
A 20 percent chance of showers and thunderstorms, mainly between noon and 2pm. Mostly sunny, with a high near 90. Heat index values as high as 100. Southwest wind 10 to 14 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 79. West wind 6 to 9 mph.
Thursday
Mostly sunny, with a high near 90. Heat index values as high as 102. Southwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 79. West wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 90. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 78. West wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 90. Calm wind becoming south 5 to 7 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 81. Southwest wind around 6 mph becoming light and variable.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 81.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
23 Miles NNW Long Key FL
25.14°N 80.92°W
25.14°N 80.92°W
2:31 am EDT Jul 29, 2026
3am EDT Jul 29, 2026-6pm EDT Aug 4, 2026
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