Dangerous Heat and Humidity Over The East

A very hot and humid airmass will persist over much of the east over the next couple of days. Afternoon high temperatures are forecast to reach 95 to 100 degrees with heat index values ranging from 100 to 110 degrees. The dangerous heat wave will impact major I-95 cities from North Carolina to New York. Read More >

Hazardous Weather Conditions

Current conditions at

Marathon, Marathon Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 7ft.

Fair

85°F

29°C

Humidity 75%
Wind Speed E 8 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 25 Jul 7:53 pm EDT
Extended Forecast for

23 Miles NNW Long Key FL

  • Tonight

    Tonight: Partly cloudy, with a low around 81. Light and variable wind becoming east 5 to 7 mph.

    Partly Cloudy

    Low: 81 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. Light east wind increasing to 5 to 10 mph in the morning.

    Mostly Sunny

    High: 88 °F

  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am.  Partly cloudy, with a low around 79. Calm wind becoming east 5 to 9 mph after midnight.

    Chance
    T-storms

    Low: 79 °F

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 8am.  Mostly sunny, with a high near 88. Breezy, with an east wind 13 to 17 mph, with gusts as high as 23 mph.

    Chance
    T-storms and
    Breezy

    High: 88 °F

  • Wednesday
    Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 81. East wind around 14 mph, with gusts as high as 18 mph.

    Partly Cloudy
    then Slight
    Chance
    T-storms

    Low: 81 °F

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 8am.  Mostly sunny, with a high near 88. Breezy, with an east wind around 16 mph, with gusts as high as 21 mph.

    Chance
    T-storms and
    Breezy

    High: 88 °F

  • Thursday
    Night

    Thursday Night: A 30 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 80. Southeast wind 6 to 11 mph.

    Chance
    T-storms

    Low: 80 °F

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 89. East wind around 9 mph.

    Chance
    T-storms

    High: 89 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 80. East wind around 7 mph.

    Slight Chance
    T-storms

    Low: 80 °F

Detailed Forecast

Tonight
Partly cloudy, with a low around 81. Light and variable wind becoming east 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 88. Light east wind increasing to 5 to 10 mph in the morning.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 79. Calm wind becoming east 5 to 9 mph after midnight.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny, with a high near 88. Breezy, with an east wind 13 to 17 mph, with gusts as high as 23 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 81. East wind around 14 mph, with gusts as high as 18 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 8am. Mostly sunny, with a high near 88. Breezy, with an east wind around 16 mph, with gusts as high as 21 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80. Southeast wind 6 to 11 mph.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. East wind around 9 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80. East wind around 7 mph.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 81.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Click Map For Forecast
Point Forecast:
23 Miles NNW Long Key FL
 25.14°N 80.95°W
8:15 pm EDT Jul 25, 2016
8pm EDT Jul 25, 2016-6pm EDT Aug 1, 2016
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database