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      Elev 16 ft, 24.695 °N 81.082 °W

      Marathon, FL

      Marathon Station84°
      Updated: 5:45 AM EDT on September 17, 2026 (GMT -4)
      5 minutes ago
      87°
      80°
      84
      Feels Like 92
      Thunder in Vicinity
      N
      9
      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
        Thu 09/17
        High 87°f
         100% Precip. / 0.1 in
        Showers and thundershowers during the morning followed by a few lingering showers this afternoon. High 87F. Winds ENE at 10 to 20 mph. Chance of rain 100%.
        Tonight
        Thu 09/17
        Low 81°f
         24% Precip. / 0 in
        Mostly cloudy. Low 81F. Winds ENE at 10 to 15 mph.
        Tomorrow
        Fri 09/18
        High 86°f80°f
         57% Precip. / 0.39 in
        Scattered thunderstorms. High 86F. Winds E at 5 to 10 mph. Chance of rain 60%.
        Hourly Forecast
        Now
        85°
        6AM
        83%
        81°
        7AM
        83°
        7:11AM
        Sunrise
        8AM
        84°
        9AM
        85°
        10AM
        86°
        11AM
        86°
        12PM
        86°
        1PM
        86°
        2PM
        31%
        87°
        3PM
        33%
        87°
        4PM
        86°
        5PM
        86°
        6PM
        86°
        7PM
        85°
        7:26PM
        Sunset
        8PM
        85°
        9PM
        84°
        10PM
        84°
        11PM
        83°
        12AM
        83°
        1AM
        83°
        2AM
        83°
        3AM
        83°
        4AM
        83°
        5AM
        83°
        Precipitation
        83%
        Rain ending around 6:45 AM
        Pollen
        None
        Air Quality
        24
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point75°F
        5. Humidity 73%
        6. Rainfall 0.03 in
        7. Snow Depth 0 in
         KMTH Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 87°F -°F -°F
        4. Low 80°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.15 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 86°F -°F -°F
        4. Low 80°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:11 AM 7:25 PM
        3. Civil Twilight 6:48 AM 7:48 PM
        4. Nautical Twilight 6:21 AM 8:15PM
        5. Astronomical Twilight 5:55 AM 8:42 PM
        1. Length of Visible Light 13h 0m
        2. Length of Day 12h 14m
        3. Tomorrow will be 1 minute 25 seconds shorter
        1. Moon 1:13 PM 11:43 PM
        2. Waxing Crescent39% 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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