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      Elev 16 ft, 25.113 °N 80.414 °W

      Key Largo, FL

      Key Largo Station82°
      Updated: 7:32 AM EDT on September 17, 2026 (GMT -4)
      5 minutes ago
      85°
      79°
      82
      Feels Like 90
      Partly Cloudy
      N
      6
      Lower 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 85°f
         45% Precip. / 0.04 in
        Partial cloudiness early, with scattered showers and thunderstorms during the afternoon. High around 85F. Winds ENE at 10 to 15 mph. Chance of rain 50%.
        Tonight
        Thu 09/17
        Low 81°f
         44% Precip. / 0.28 in
        Mostly cloudy this evening with showers developing after midnight. Low 81F. Winds ENE at 10 to 15 mph. Chance of rain 40%.
        Tomorrow
        Fri 09/18
        High 85°f79°f
         57% Precip. / 0.38 in
        Scattered showers and thunderstorms. High near 85F. Winds ENE at 5 to 10 mph. Chance of rain 60%.
        Hourly Forecast
        Now
        82°
        8AM
        82°
        9AM
        84°
        10AM
        85°
        11AM
        85°
        12PM
        85°
        1PM
        84°
        2PM
        84°
        3PM
        45%
        84°
        4PM
        35%
        84°
        5PM
        84°
        6PM
        84°
        7PM
        84°
        7:23PM
        Sunset
        8PM
        84°
        9PM
        84°
        10PM
        84°
        11PM
        83°
        12AM
        83°
        1AM
        37%
        83°
        2AM
        45%
        82°
        3AM
        36%
        82°
        4AM
        82°
        5AM
        82°
        6AM
        82°
        7AM
        31%
        82°
        Precipitation
        45%
        Pollen
        None
        Air Quality
        24
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.03 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point75°F
        5. Humidity 79%
        6. Rainfall 0.32 in
        7. Snow Depth 0 in
         KHST Station History
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 85°F 88°F 93°F 1983
        4. Low 79°F 78°F 70°F 1961
        5. Rain/Snow Depth
        6. Precipitation 0.32 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 85°F 88°F 93°F
        4. Low 79°F 78°F 70°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:08 AM 7:23 PM
        3. Civil Twilight 6:45 AM 7:46 PM
        4. Nautical Twilight 6:18 AM 8:12PM
        5. Astronomical Twilight 5:51 AM 8:39 PM
        1. Length of Visible Light 13h 0m
        2. Length of Day 12h 14m
        3. Tomorrow will be 1 minute 27 seconds shorter
        1. Moon 1:11 PM 11:39 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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