Severe Thunderstorms and Heavy Rain in the Southern U.S.; Snow in the Northern Rockies and Northern Plains

A storm system will shift from eastern Texas into the lower Mississippi Valley today with additional threats of severe thunderstorms and heavy to excessive rainfall which may bring flooding. In the northern U.S., a storm will bring heavy snow and gusty winds over parts of the northern Rockies, northern Plains, and Upper Midwest today into Wednesday. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

79°F

26°C

Humidity 65%
Wind Speed E 15 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 24 Nov 4:53 pm EST
Extended Forecast for

Long Key FL

  • Tonight

    Tonight: Partly cloudy, with a low around 75. East wind 10 to 15 mph.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers.  Sunny, with a high near 79. East wind around 10 mph.  Chance of precipitation is 10%.

    High: 79 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers.  Partly cloudy, with a low around 74. East wind around 10 mph.  Chance of precipitation is 10%.

    Low: 74 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers.  Mostly sunny, with a high near 79. Southeast wind around 5 mph.  Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers.  Mostly cloudy, with a low around 73. East wind around 5 mph.  Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    Showers

  • Thanksgiving Day

    Thanksgiving Day: A chance of showers.  Partly sunny, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers.  Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers.  Partly sunny, with a high near 76. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 75. East wind 10 to 15 mph.
Tuesday
A slight chance of showers. Sunny, with a high near 79. East wind around 10 mph. Chance of precipitation is 10%.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 74. East wind around 10 mph. Chance of precipitation is 10%.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 79. Southeast wind around 5 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 73. East wind around 5 mph. Chance of precipitation is 20%.
Thanksgiving Day
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
A slight chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 20%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Saturday
A slight chance of showers. Mostly sunny, with a high near 77. Breezy. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 72. Breezy. Chance of precipitation is 20%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 78. Chance of precipitation is 10%.
Sunday Night
Partly cloudy, with a low around 74.
Monday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Long Key FL
 24.83°N 80.81°W (Elev. 0 ft)
4:15 pm EST Nov 24, 2025
5pm EST Nov 24, 2025-6pm EST Dec 1, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database