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      Elev 16 ft, 24.695 °N 81.082 °W

      Marathon, FL

      Updated: 6:47 AM EDT on October 31, 2026 (GMT -4)
      3 minutes ago
      84°
      79°
      81
      Feels Like 89
      Partly Cloudy
      N
      10
      Similar temperature is expected today
      Wundermap

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      Wundermap
      50
      50
      575
      90
      50
      7
      0 mph
      50
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      Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Sat 10/31
        High 84°f
        24% Precip. / 0 in
        A mix of clouds and sun during the morning will give way to cloudy skies this afternoon. Slight chance of a rain shower. High 84F. Winds E at 10 to 15 mph.
        Tonight
        Sat 10/31
        Low 78°f
        50% Precip. / 0.25 in
        Cloudy skies early with scattered thunderstorms developing late. Low 78F. Winds E at 10 to 15 mph. Chance of rain 50%.
        Tomorrow
        Sun 11/01
        High 83°f77°f
        62% Precip. / 0.16 in
        Showers in the morning with isolated thunderstorms arriving in the afternoon. Potential for heavy rainfall. High 83F. Winds E at 10 to 15 mph. Chance of rain 60%.
        Hourly Forecast
        Now
        81°
        7AM
        81°
        7:31AM
        Sunrise
        8AM
        81°
        9AM
        81°
        10AM
        82°
        11AM
        82°
        12PM
        83°
        1PM
        83°
        2PM
        84°
        3PM
        84°
        4PM
        84°
        5PM
        83°
        6PM
        82°
        6:44PM
        Sunset
        7PM
        81°
        8PM
        81°
        9PM
        81°
        10PM
        81°
        11PM
        33%
        81°
        12AM
        81°
        1AM
        31%
        80°
        1AM
        35%
        80°
        2AM
        41%
        80°
        3AM
        40%
        79°
        4AM
        50%
        79°
        5AM
        42%
        79°
        Additional Conditions
        1. Pressure 29.98 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point76°F
        5. Humidity 85%
        6. Rainfall 0 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 79°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.25 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 83°F -°F -°F
        4. Low 78°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:30 AM 6:44 PM
        3. Civil Twilight 7:07 AM 7:08 PM
        4. Nautical Twilight 6:40 AM 7:35PM
        5. Astronomical Twilight 6:13 AM 8:01 PM
        1. Length of Visible Light 12h 0m
        2. Length of Day 11h 13m
        3. Tomorrow will be 1 minute 11 seconds shorter
        1. Moon - 1:14 PM
        2. Waning Gibbous68% of the Moon is Illuminated
        Nov 1
        Waning Half Last Qtr
        Nov 9
        New Moon
        Nov 17
        Waxing Half First Qtr
        Nov 24
        Full Moon
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