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      Flood Advisory
      until 4:15 PM EDT
      Elev 16 ft, 24.551 °N 81.789 °W

      Key West, FL

      33040 Station81°
      Updated: 2:25 PM EDT on September 17, 2026 (GMT -4)
      7 minutes ago
      89°
      78°
      81
      Feels Like 88
      Thunderstorm
      N
      7
      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
         58% Precip. / 0.05 in
        Cloudy with showers. High 87F. Winds ENE at 10 to 15 mph. Chance of rain 60%.
        Tonight
        Thu 09/17
        Low 82°f
         58% Precip. / 2.34 in
        Scattered thunderstorms. Low 82F. Winds ENE at 10 to 15 mph. Chance of rain 60%. 2 to 3 inches of rain expected.
        Tomorrow
        Fri 09/18
        High 86°f80°f
         73% Precip. / 0.75 in
        Heavy thunderstorms in the morning will give way to cloudy skies late. High 86F. Winds E at 5 to 10 mph. Chance of rain 70%.
        Hourly Forecast
        Now
        78°
        3PM
        58%
        80°
        4PM
        45%
        81°
        5PM
        81°
        6PM
        86°
        7PM
        53%
        85°
        7:28PM
        Sunset
        8PM
        58%
        84°
        9PM
        58%
        83°
        10PM
        84°
        11PM
        83°
        12AM
        83°
        1AM
        84°
        2AM
        31%
        83°
        3AM
        83°
        4AM
        31%
        83°
        5AM
        48%
        83°
        6AM
        42%
        82°
        7AM
        33%
        82°
        7:14AM
        Sunrise
        8AM
        66%
        82°
        9AM
        64%
        83°
        10AM
        46%
        83°
        11AM
        37%
        84°
        12PM
        31%
        84°
        1PM
        84°
        2PM
        85°
        Precipitation
        66%
        Thunderstorms likely to continue
        Pollen
        None
        Air Quality
        22
        Good
        UV Index
        6
        High
        Additional Conditions
        1. Pressure 30.04 in
        2. Visibility 7 miles
        3. Clouds Cloudy
        4. Dew Point75°F
        5. Humidity 90%
        6. Rainfall 0.29 in
        7. Snow Depth 0 in
         KEYW Station History
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 89°F 89°F 92°F 2019
        4. Low 78°F 79°F 69°F 1985
        5. Rain/Snow Depth
        6. Precipitation 2.39 in - in -
        7. Snow 0 in - in -
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 86°F 89°F 93°F
        4. Low 78°F 79°F 70°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:14 AM 7:28 PM
        3. Civil Twilight 6:51 AM 7:51 PM
        4. Nautical Twilight 6:24 AM 8:18PM
        5. Astronomical Twilight 5:57 AM 8:44 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 1:16 PM 11:46 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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