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.

Mostly Cloudy

78°F

26°C

Humidity 90%
Wind Speed SW 6 mph
Barometer 29.84 in (1010.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 14 May 3:53 am EDT
Extended Forecast for

Big Pine Key FL

  • Overnight

    Overnight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 82. West wind around 10 mph. Chance of precipitation is 40%.

    Low: 82 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then a slight chance of showers. Mostly sunny, with a high near 91. West wind around 10 mph. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 82. West wind around 10 mph.

    Low: 82 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Northwest wind around 5 mph becoming calm in the morning.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 82. West wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 82 °F

    Slight Chance
    T-storms

  • Saturday

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

    High: 91 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 30%.

    Low: 83 °F

    Chance
    Showers

  • Sunday

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

    High: 92 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.

    Low: 81 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 82. West wind around 10 mph. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms before 8am, then a slight chance of showers. Mostly sunny, with a high near 91. West wind around 10 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 82. West wind around 10 mph.
Friday
Sunny, with a high near 90. Northwest wind around 5 mph becoming calm in the morning.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 82. West wind around 5 mph becoming calm. Chance of precipitation is 20%.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 10%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
Monday
A slight chance of showers. Mostly sunny, with a high near 91. Chance of precipitation is 10%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 91. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
Wednesday
A slight chance of showers. Sunny, with a high near 91. Chance of precipitation is 10%.
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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:
3:15 am EDT May 14, 2026
Forecast Valid:
4am EDT May 14, 2026-6pm EDT May 20, 2026
 
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