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The Florida Keys Marathon Weather Warning NWS WEATHER ALERT FOR THE THE FLORIDA KEYS MARATHON, FL AREA - SHORTTERM FORECAST Issued: 219 AM EDT Sat Aug 29 2026 The Florida Keys Marathon Weather Warning

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The Florida Keys Marathon, FL Weather - Hour by Hour Forecast

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The Florida Keys Marathon, FL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Mostly Clear. Temperature is 85°F29°C, dew point 77°F25°C, humidity 77%. Wind direction is E at 8 mph13 km/h with visibility of 10 mi16 km. Barometric pressure is 30 in1016 mb.
Tonight - Mostly clear with a chance of showers and thunderstorms. Lows in the lower 80s. East winds 5 to 10 mph. Chance of rain 30 percen.. Full Forecast
Saturday - Partly cloudy with a chance of showers and thunderstorms. Highs near 90. East winds 5 to 10 mph. Chance of rain 40%... Full Forecast

The Florida Keys Marathon Hourly Weather

24 Hour Forecast Scroll
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The Florida Keys Marathon, FL Hourly Weather - Partly Cloudy - 2:00 AM The Florida Keys Marathon, FL Hourly Weather - Partly Cloudy - 3:00 AM The Florida Keys Marathon, FL Hourly Weather - Mostly Cloudy - 4:00 AM The Florida Keys Marathon, FL Hourly Weather - Mostly Cloudy - 5:00 AM The Florida Keys Marathon, FL Hourly Weather - Mostly Cloudy - 6:00 AM The Florida Keys Marathon, FL Hourly Weather - Partly Cloudy - 7:00 AM The Florida Keys Marathon, FL Hourly Weather - Partly Cloudy - 8:00 AM The Florida Keys Marathon, FL Hourly Weather - Partly Cloudy - 9:00 AM The Florida Keys Marathon, FL Hourly Weather - Mostly Clear - 10:00 AM The Florida Keys Marathon, FL Hourly Weather - Mostly Clear - 11:00 AM The Florida Keys Marathon, FL Hourly Weather - Mostly Clear - 12:00 PM The Florida Keys Marathon, FL Hourly Weather - Mostly Cloudy - 1:00 PM The Florida Keys Marathon, FL Hourly Weather - Mostly Cloudy - 2:00 PM The Florida Keys Marathon, FL Hourly Weather - Mostly Cloudy - 3:00 PM The Florida Keys Marathon, FL Hourly Weather - Cloudy - 4:00 PM The Florida Keys Marathon, FL Hourly Weather - Cloudy - 5:00 PM The Florida Keys Marathon, FL Hourly Weather - Cloudy - 6:00 PM The Florida Keys Marathon, FL Hourly Weather - Mostly Cloudy - 7:00 PM The Florida Keys Marathon, FL Hourly Weather - Mostly Cloudy - 8:00 PM The Florida Keys Marathon, FL Hourly Weather - Mostly Cloudy - 9:00 PM The Florida Keys Marathon, FL Hourly Weather - Cloudy - 10:00 PM The Florida Keys Marathon, FL Hourly Weather - Cloudy - 11:00 PM The Florida Keys Marathon, FL Hourly Weather - Cloudy - 12:00 AM The Florida Keys Marathon, FL Hourly Weather - Cloudy - 1:00 AM
Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Mostly Clear Mostly Clear Mostly Clear Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy
83°F28°C 83°F28°C 83°F28°C 83°F28°C 83°F28°C 84°F29°C 84°F29°C 85°F29°C 87°F31°C 88°F31°C 88°F31°C 89°F32°C 89°F32°C 89°F32°C 88°F31°C 88°F31°C 87°F31°C 86°F30°C 85°F29°C 85°F29°C 84°F29°C 84°F29°C 84°F29°C 84°F29°C
- - - - - - - Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain
16% 16% 16% 16% 16% 16% 16% 36% 36% 36% 36% 36% 36% 41% 41% 41% 41% 41% 41% 38% 38% 38% 38% 38%
77°F25°C 77°F25°C 76°F24°C 76°F24°C 76°F24°C 77°F25°C 77°F25°C 77°F25°C 78°F26°C 78°F26°C 78°F26°C 78°F26°C 78°F26°C 78°F26°C 78°F26°C 78°F26°C 78°F26°C 77°F25°C 77°F25°C 77°F25°C 77°F25°C 77°F25°C 77°F25°C 77°F25°C
82% 82% 80% 80% 80% 80% 80% 77% 75% 72% 72% 70% 70% 70% 72% 72% 75% 75% 77% 77% 80% 80% 80% 80%
E E E E E E E E E E E E E E E E E E E E ENE ENE ENE E
7 mph 7 mph 6 mph 6 mph 6 mph 6 mph 6 mph 6 mph 7 mph 7 mph 7 mph 7 mph 7 mph 7 mph 7 mph 7 mph 7 mph 6 mph 6 mph 6 mph 7 mph 7 mph 7 mph 7 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (EDT)
Weather
Clouds
Temperature
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POP
Dewpoint
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Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KMTH model statistics.

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Prob Precip % = Probability of Precipitation.

The Florida Keys Marathon 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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