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      Elev 21 ft, 25.907 °N 81.678 °W

      Marco Island, FL

      Key Marco Station80°
      Updated: 7:53 PM EDT on September 20, 2026 (GMT -4)
      6 minutes ago
      88°
      74°
      80
      Feels Like 87
      Partly Cloudy
      N
      6
      Lower 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
        Sun 09/20
        Low 75°f
         48% Precip. / 0.09 in
        Showers this evening then scattered thunderstorms developing overnight. Low near 75F. Winds E at 5 to 10 mph. Chance of rain 50%.
        Tomorrow
        Mon 09/21
        High 84°f
         58% Precip. / 0.22 in
        Scattered thunderstorms. High 84F. Winds SSE at 5 to 10 mph. Chance of rain 60%.
        Tomorrow night
        Mon 09/21
        Low 77°f
         55% Precip. / 0.14 in
        Variably cloudy with scattered thunderstorms. Low 77F. Winds SE at 5 to 10 mph. Chance of rain 60%.
        Hourly Forecast
        Now
        81°
        8PM
        81°
        9PM
        79°
        10PM
        50%
        78°
        11PM
        44%
        78°
        12AM
        78°
        1AM
        77°
        2AM
        77°
        3AM
        31%
        78°
        4AM
        44%
        77°
        5AM
        46%
        77°
        6AM
        36%
        77°
        7AM
        47%
        76°
        7:15AM
        Sunrise
        8AM
        36%
        76°
        9AM
        39%
        79°
        10AM
        42%
        81°
        11AM
        82°
        12PM
        32%
        83°
        1PM
        30%
        84°
        2PM
        58%
        83°
        3PM
        57%
        83°
        4PM
        37%
        82°
        5PM
        82°
        6PM
        82°
        7PM
        81°
        Precipitation
        58%
        Thunderstorms possible around 10:30 PM
        Pollen
        None
        Air Quality
        29
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.87 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point74°F
        5. Humidity 78%
        6. Rainfall 0.2 in
        7. Snow Depth 0 in
         KMKY Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 88°F 89°F 96°F 2002
        4. Low 74°F 72°F 66°F 1981
        5. Rain/Snow Depth
        6. Precipitation 0.09 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 84°F 89°F 95°F
        4. Low 74°F 72°F 66°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:14 AM 7:25 PM
        3. Civil Twilight 6:51 AM 7:48 PM
        4. Nautical Twilight 6:24 AM 8:14PM
        5. Astronomical Twilight 5:57 AM 8:41 PM
        1. Length of Visible Light 12h 56m
        2. Length of Day 12h 10m
        3. Tomorrow will be 1 minute 31 seconds shorter
        1. Moon 3:47 PM 1:27 AM
        2. Waxing Gibbous68% 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
        Precipitation
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