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      Elev 16 ft, 24.695 °N 81.082 °W

      Marathon, FL

      Marathon Station87°
      Updated: 6:50 PM EDT on September 8, 2026 (GMT -4)
      4 minutes ago
      90°
      82°
      87
      Feels Like 99
      Sunny
      N
      6
      Similar temperature is expected tomorrow
      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
        Tonight
        Tue 09/08
        Low 83°f
         15% Precip. / 0 in
        A few clouds. Low 83F. Winds E at 5 to 10 mph.
        Tomorrow
        Wed 09/09
        High 88°f
         24% Precip. / 0 in
        Mostly cloudy skies early will become partly cloudy later in the day. A stray shower or thunderstorm is possible. High 88F. Winds E at 10 to 15 mph.
        Tomorrow night
        Wed 09/09
        Low 83°f
         24% Precip. / 0 in
        Partly cloudy skies in the evening, then becoming cloudy overnight. Low 83F. Winds E at 10 to 15 mph.
        Hourly Forecast
        Now
        87°
        7PM
        87°
        7:35PM
        Sunset
        8PM
        86°
        9PM
        86°
        10PM
        86°
        11PM
        85°
        12AM
        85°
        1AM
        85°
        2AM
        85°
        3AM
        85°
        4AM
        85°
        5AM
        85°
        6AM
        85°
        7AM
        84°
        7:08AM
        Sunrise
        8AM
        85°
        9AM
        86°
        10AM
        87°
        11AM
        87°
        12PM
        87°
        1PM
        88°
        2PM
        88°
        3PM
        88°
        4PM
        88°
        5PM
        88°
        6PM
        37%
        87°
        Precipitation
        37%
        Pollen
        None
        Air Quality
        46
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.02 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point76°F
        5. Humidity 72%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KMTH Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 90°F -°F -°F
        4. Low 82°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 88°F -°F -°F
        4. Low 82°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:08 AM 7:35 PM
        3. Civil Twilight 6:45 AM 7:58 PM
        4. Nautical Twilight 6:18 AM 8:25PM
        5. Astronomical Twilight 5:50 AM 8:52 PM
        1. Length of Visible Light 13h 13m
        2. Length of Day 12h 27m
        3. Tomorrow will be 1 minute 25 seconds shorter
        1. Moon 4:26 AM 6:04 PM
        2. Waning Crescent9% of the Moon is Illuminated
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Precipitation
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