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      Coastal Flood Statement
      until 6:00 PM EDT
      Elev 5 ft, 24.692 °N 81.080 °W

      Marathon, FL

      Marathon Station82°
      Updated: 11:48 AM EDT on September 23, 2026 (GMT -4)
      9 minutes ago
      84°
      77°
      82
      Feels Like 90
      Cloudy
      N
      7
      Lower temperature is expected today
      Wundermap
      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
        Wed 09/23
        High 84°f
         79% Precip. / 0.46 in
        Isolated thunderstorms this morning, then mainly cloudy during the afternoon with thunderstorms likely. High 84F. Winds WSW at 5 to 10 mph. Chance of rain 80%.
        Tonight
        Wed 09/23
        Low 80°f
         24% Precip. / 0 in
        Cloudy. Low around 80F. Winds light and variable.
        Tomorrow
        Thu 09/24
        High 86°f80°f
         19% Precip. / 0 in
        Mostly cloudy. High 86F. Winds NNW at 5 to 10 mph.
        Hourly Forecast
        Now
        82°
        12PM
        32%
        82°
        1PM
        64%
        82°
        2PM
        58%
        82°
        3PM
        58%
        82°
        4PM
        58%
        82°
        5PM
        83°
        6PM
        83°
        7PM
        34%
        82°
        7:19PM
        Sunset
        8PM
        82°
        9PM
        81°
        10PM
        82°
        11PM
        81°
        12AM
        81°
        1AM
        82°
        2AM
        81°
        3AM
        82°
        4AM
        81°
        5AM
        81°
        6AM
        81°
        7AM
        81°
        7:13AM
        Sunrise
        8AM
        82°
        9AM
        83°
        10AM
        83°
        11AM
        84°
        Precipitation
        64%
        Thunderstorms possible around 12:45 PM
        Pollen
        None
        Air Quality
        21
        Good
        UV Index
        7
        High
        Additional Conditions
        1. Pressure 29.96 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point77°F
        5. Humidity 85%
        6. Rainfall 0.21 in
        7. Snow Depth 0 in
         KMTH Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 84°F -°F -°F
        4. Low 77°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.48 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 86°F -°F -°F
        4. Low 77°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:13 AM 7:19 PM
        3. Civil Twilight 6:50 AM 7:42 PM
        4. Nautical Twilight 6:24 AM 8:08PM
        5. Astronomical Twilight 5:57 AM 8:35 PM
        1. Length of Visible Light 12h 51m
        2. Length of Day 12h 6m
        3. Tomorrow will be 1 minute 26 seconds shorter
        1. Moon 5:34 PM 4:16 AM
        2. Waxing Gibbous91% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
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