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.

Overcast

75°F

24°C

Humidity 90%
Wind Speed N 6 mph
Barometer 29.96 in (1014.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 4 May 1:53 am EDT
Extended Forecast for

6 Miles ENE Valhalla FL

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 76. West wind around 10 mph. Chance of precipitation is 60%.

    Low: 76 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 82. North wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. East wind around 10 mph. Chance of precipitation is 50%.

    Low: 76 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 82. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Partly cloudy, with a low around 78. Northeast wind around 5 mph becoming east after midnight. Chance of precipitation is 10%.

    Low: 78 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 80.

    Low: 80 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 76. West wind around 10 mph. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 82. North wind 5 to 10 mph. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. East wind around 10 mph. Chance of precipitation is 50%.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 82. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 78. Northeast wind around 5 mph becoming east after midnight. Chance of precipitation is 10%.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 80.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 79.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 80.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 79.
Sunday
A slight chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 10%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ENE Valhalla FL
 24.79°N 80.89°W (Elev. 0 ft)
Last Update:
2:15 am EDT May 4, 2026
Forecast Valid:
2am EDT May 4, 2026-6pm EDT May 10, 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