National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Flood Threat Continues Across Interior West

Monsoon showers and thunderstorms may result in flash flooding and debris flows from the Four Corners region and Southwest into the Intermountain West through the weekend. A stalling front will result in heavy rain and possible localized flash flooding in Florida and along the immediate Gulf Coast Friday and through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Heavy Rain Fog/Mist

78°F

26°C

Humidity 87%
Wind Speed E 15 G 24 mph
Barometer 30.03 in (1017.0 mb)
Dewpoint 74°F (23°C)
Visibility 2.50 mi
Heat Index80°F (27°C)
Last update 12 Aug 6:53 am EDT
Extended Forecast for

23 Miles NNW Long Key FL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny, with a high near 88. Southeast wind 5 to 10 mph.

    Chance
    T-storms

    High: 88 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 76. East wind 3 to 6 mph.

    Partly Cloudy

    Low: 76 °F

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 88. Calm wind becoming southeast 5 to 7 mph in the morning.

    Chance
    T-storms

    High: 88 °F

  • Saturday
    Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. Calm wind.

    Partly Cloudy
    then Slight
    Chance
    T-storms

    Low: 76 °F

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind. Chance of precipitation is 40%.

    Slight Chance
    T-storms then
    Chance
    T-storms

    High: 88 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. Calm wind.

    Chance
    T-storms

    Low: 76 °F

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.

    Chance
    T-storms

    High: 88 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 77. Calm wind.

    Mostly Clear

    Low: 77 °F

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.

    Chance
    T-storms

    High: 88 °F

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny, with a high near 88. Southeast wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 76. East wind 3 to 6 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 88. Calm wind becoming southeast 5 to 7 mph in the morning.
Saturday Night
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. Calm wind.
Sunday
A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind. Chance of precipitation is 40%.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 77. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 77.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 89.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 77.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
23 Miles NNW Long Key FL
 25.14°N 80.92°W
Last Update:
7:10 am EDT Aug 12, 2022
Forecast Valid:
7am EDT Aug 12, 2022-6pm EDT Aug 18, 2022
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation