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      Elev 16 ft, 24.695 °N 81.082 °W

      Marathon, FL

      Marathon Station91°
      Updated: 9:45 AM EDT on September 14, 2026 (GMT -4)
      6 minutes ago
      88°
      81°
      91
      Feels Like 103
      Fair
      N
      1
      Similar temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Mon 09/14
        High 88°f
         17% Precip. / 0 in
        A mix of clouds and sun. A stray shower or thunderstorm is possible. High 88F. Winds light and variable.
        Tonight
        Mon 09/14
        Low 83°f
         14% Precip. / 0 in
        Some clouds. Low 83F. Winds E at 5 to 10 mph.
        Tomorrow
        Tue 09/15
        High 89°f82°f
         22% Precip. / 0 in
        Partly cloudy. A stray shower or thunderstorm is possible. High 89F. Winds E at 10 to 15 mph.
        Hourly Forecast
        Now
        88°
        10AM
        88°
        11AM
        88°
        12PM
        88°
        1PM
        87°
        2PM
        87°
        3PM
        87°
        4PM
        87°
        5PM
        87°
        6PM
        87°
        7PM
        86°
        7:29PM
        Sunset
        8PM
        86°
        9PM
        85°
        10PM
        85°
        11PM
        85°
        12AM
        85°
        1AM
        84°
        2AM
        84°
        3AM
        85°
        4AM
        84°
        5AM
        84°
        6AM
        84°
        7AM
        84°
        7:10AM
        Sunrise
        8AM
        84°
        9AM
        86°
        Precipitation
        22%
        Pollen
        None
        Air Quality
        52
        Moderate
        UV Index
        4
        Moderate
        Additional Conditions
        1. Pressure 30.06 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point76°F
        5. Humidity 68%
        6. Rainfall 0.05 in
        7. Snow Depth 0 in
         KMTH Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 88°F -°F -°F
        4. Low 81°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 89°F -°F -°F
        4. Low 81°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:10 AM 7:29 PM
        3. Civil Twilight 6:47 AM 7:51 PM
        4. Nautical Twilight 6:20 AM 8:18PM
        5. Astronomical Twilight 5:53 AM 8:45 PM
        1. Length of Visible Light 13h 4m
        2. Length of Day 12h 18m
        3. Tomorrow will be 1 minute 25 seconds shorter
        1. Moon 10:24 AM 9:33 PM
        2. Waxing Crescent13% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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