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Hazardous Weather Conditions
Current conditions at
The Florida Keys - Marathon International Airport (KMTH)
Lat: 24.73°NLon: 81.05°WElev: 13ft.
Fair
82°F
28°C
| Humidity | 88% |
| Wind Speed | Calm |
| Barometer | 29.86 in (1010.9 mb) |
| Dewpoint | 78°F (26°C) |
| Visibility | 10.00 mi |
| Heat Index | 91°F (33°C) |
| Last update | 8 Oct 1:53 am EDT |
Extended Forecast for
23 Miles NNW Long Key FL
Overnight
Low: 77 °F
Slight Chance
T-stormsThursday
High: 87 °F
Chance
T-stormsThursday Night
Low: 78 °F
Mostly Clear
Friday
High: 88 °F
Chance
T-stormsFriday Night
Low: 78 °F
Chance
T-storms then
Showers
LikelySaturday
High: 88 °F
Showers
Likely then
Chance
T-stormsSaturday Night
Low: 79 °F
Chance
T-storms then
Chance
ShowersSunday
High: 88 °F
Slight Chance
T-stormsSunday Night
Low: 79 °F
Mostly Clear
Detailed Forecast
Overnight
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Light south wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly between 11am and 2pm. Mostly sunny, with a high near 87. South wind 5 to 9 mph.
Thursday Night
Mostly clear, with a low around 78. Southeast wind 3 to 6 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 88. Heat index values as high as 100. Southeast wind 9 to 13 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Partly cloudy, with a low around 78. East wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms, mainly between 8am and 2pm. Mostly sunny, with a high near 88. South wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 79. Southeast wind around 11 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 2pm. Mostly sunny, with a high near 88. Southeast wind around 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 79. East wind 7 to 10 mph.
Columbus Day
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 87.
Monday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 78.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 86.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Wednesday
A 20 percent chance of showers. Sunny, with a high near 86.
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
2:21 am EDT Oct 8, 2026
2am EDT Oct 8, 2026-6pm EDT Oct 14, 2026
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