Heavy rain expected across the Mid-Atlantic region and central Appalachians.

Heavy rainfall is possible over portions of the eastern United States today, with the highest risk across the Mid-Atlantic and central Appalachians. Click the "Read More" link for excessive rainfall forecasts from the Weather Prediction Center. Afternoon showers and thunderstorms are possible over portions of the Southwest and southern Rockies through Friday.
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Hazardous Weather Conditions

For More Weather Information:

Key West, FL Local Forecast Office

2NM ESE Key West FL

Marine Point Forecast

[NOTICE]
  • Tonight

    Slight Chc Thunderstorms

    Light Wind
    < 1ft

    Low: 80 °F

  • Friday

    Chance Showers

    Light Wind
    < 1ft

    High: 89 °F

  • Friday
    Night

    Chance Thunderstorms

    Light Wind
    < 1ft

    Low: 79 °F

  • Saturday

    Chance Thunderstorms

    ENE 10kt
    < 1ft

    High: 88 °F

  • Saturday
    Night

    Chance Thunderstorms

    ENE 10kt
    < 1ft

    Low: 80 °F

  • Sunday

    Chance Thunderstorms

    ENE 10kt
    < 1ft

    High: 88 °F

  • Sunday
    Night

    Chance Thunderstorms

    ENE 10kt
    < 1ft

    Low: 80 °F

  • Monday

    Chance Thunderstorms

    NE 10kt
    < 1ft

    High: 86 °F

  • Monday
    Night

    Chance Thunderstorms

    NNE 15kt
    1-2ft

    Low: 77 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:15 pm EDT Sep 29, 2016
Forecast Valid: 7pm EDT Sep 29, 2016-6pm EDT Oct 6, 2016

View Nearby Observations

Detailed Forecast

SEAS ARE GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

Synopsis: A WEAK PRESSURE PATTERN WILL PERSIST TONIGHT AND FRIDAY...RESULTING IN LIGHT TO OCCASIONALLY GENTLE BREEZES. BREEZES WILL FRESHEN SATURDAY THROUGH MONDAY. IT IS STILL TOO EARLY TO DETERMINE WHAT, IF ANY, IMPACTS HURRICANE MATTHEW COULD HAVE ON KEYS COASTAL WATERS EARLY NEXT WEEK.

THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM CURRENT...AS OF SEPTEMBER 29TH...

18 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY. 11 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS. 11 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST. 10 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY. 5 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON. 2 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA. 3 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO. 8 NM EAST OF CARYSFORT REEF LIGHT...OFF OCEAN REEF.

GULF STREAM INFORMATION BASED ON THE NAVAL OCEANOGRAPHIC OFFICE.

Tonight
Variable winds 5 kt or less. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Friday
Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 9am. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. A chance of showers and thunderstorms. Seas 1 ft or less.
Saturday
ENE wind around 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Saturday Night
ENE wind around 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Sunday
ENE wind around 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Sunday Night
ENE wind around 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Monday
NE wind around 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Monday Night
NNE wind 10 to 15 kt. A chance of showers and thunderstorms. Seas 1 to 2 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 24.55°N 81.75°W
Last Update: 5:15 pm EDT Sep 29, 2016
Forecast Valid: 7pm EDT Sep 29, 2016-6pm EDT Oct 6, 2016
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