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

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

A Few Clouds

84°F

29°C

Humidity 74%
Wind Speed E 3 mph
Barometer 29.90 in (1012.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 17 Aug 5:53 am EDT
Extended Forecast for

Big Pine Key FL

  • Today

    Today: A chance of showers and thunderstorms. Mostly sunny, with a high near 93. South wind around 5 mph. Chance of precipitation is 30%.

    High: 93 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly clear, with a low around 81. East wind around 5 mph. Chance of precipitation is 40%.

    Low: 81 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms. Sunny, with a high near 93. East wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 30%.

    High: 93 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly clear, with a low around 82. Northwest wind around 5 mph. Chance of precipitation is 30%.

    Low: 82 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Sunny, with a high near 93. Northwest wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 93 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly clear, with a low around 81. Chance of precipitation is 30%.

    Low: 81 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.

    High: 92 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly clear, with a low around 81. Chance of precipitation is 30%.

    Low: 81 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms. Sunny, with a high near 93. Chance of precipitation is 30%.

    High: 93 °F

    Chance
    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. South wind around 5 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms. Mostly clear, with a low around 81. East wind around 5 mph. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Sunny, with a high near 93. East wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 82. Northwest wind around 5 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Sunny, with a high near 93. Northwest wind 5 to 10 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 81. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 81. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Sunny, with a high near 93. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Sunny, with a high near 93. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 82. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Sunny, with a high near 93. Chance of precipitation is 30%.
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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:
6:15 am EDT Aug 17, 2025
Forecast Valid:
6am EDT Aug 17, 2025-6pm EDT Aug 23, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation