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

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

86°F

30°C

Humidity 75%
Wind Speed E 9 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 10 Aug 8:53 pm EDT
Extended Forecast for

Big Pine Key FL

  • Tonight

    Tonight: A slight chance of showers and thunderstorms. Mostly clear, with a low around 83. East wind 10 to 15 mph. Chance of precipitation is 10%.

    Low: 83 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms. Sunny, with a high near 93. East wind around 10 mph. Chance of precipitation is 10%.

    High: 93 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 82. East wind 5 to 10 mph. Chance of precipitation is 10%.

    Low: 82 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 91. East wind around 5 mph.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 82. East wind around 5 mph.

    Low: 82 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms. Sunny, with a high near 91. Chance of precipitation is 10%.

    High: 91 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 82.

    Low: 82 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms. Sunny, with a high near 93. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 82. Chance of precipitation is 50%.

    Low: 82 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms. Mostly clear, with a low around 83. East wind 10 to 15 mph. Chance of precipitation is 10%.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. East wind around 10 mph. Chance of precipitation is 10%.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 82. East wind 5 to 10 mph. Chance of precipitation is 10%.
Wednesday
Sunny, with a high near 91. East wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 82. East wind around 5 mph.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 91. Chance of precipitation is 10%.
Thursday Night
Mostly clear, with a low around 82.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 82. Chance of precipitation is 50%.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers. Mostly clear, with a low around 82. Chance of precipitation is 10%.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 82.
Monday
Sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Big Pine Key FL
 24.68°N 81.35°W (Elev. 3 ft)
Last Update:
9:15 pm EDT Aug 10, 2026
Forecast Valid:
9pm EDT Aug 10, 2026-6pm EDT Aug 17, 2026
 
Forecast Discussion
 
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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