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

Severe Thunderstorms Possible in the South Central U.S.; Wildfire Smoke Impacts in the North Central U.S.; Severe Space Weather

Scattered severe thunderstorms may bring large hail and isolated damaging winds this weekend over parts of the south central U.S. Smoke from Canadian wildfires will bring air quality issues to parts of the north central U.S. this weekend. Moderate to Severe geomagnetic storm conditions will remain possible into early Monday following a strong coronal mass ejection from the sun. Read More >

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

A Few Clouds

87°F

31°C

Humidity 67%
Wind Speed S 8 mph
Barometer 29.99 in (1015.3 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 1 Jun 11:53 am EDT
Extended Forecast for

Marathon Shores FL

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Mostly cloudy, with a high near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 80. West wind 5 to 10 mph becoming south after midnight. Chance of precipitation is 50%.

    Low: 80 °F

    Chance
    T-storms

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 86. Southwest wind around 5 mph. Chance of precipitation is 80%.

    High: 86 °F

    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 77. South wind 5 to 10 mph. Chance of precipitation is 80%.

    Low: 77 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 86. East wind around 10 mph. Chance of precipitation is 80%.

    High: 86 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 78. Chance of precipitation is 70%.

    Low: 78 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Cloudy, with a low around 80. Chance of precipitation is 40%.

    Low: 80 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 89. Chance of precipitation is 40%.

    High: 89 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Mostly cloudy, with a high near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 80. West wind 5 to 10 mph becoming south after midnight. Chance of precipitation is 50%.
Monday
Showers and possibly a thunderstorm. High near 86. Southwest wind around 5 mph. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm. Low around 77. South wind 5 to 10 mph. Chance of precipitation is 80%.
Tuesday
Showers and possibly a thunderstorm. High near 86. East wind around 10 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 78. Chance of precipitation is 70%.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Cloudy, with a low around 80. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 89. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 79. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 88. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 80. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marathon Shores FL
 24.72°N 81.05°W (Elev. 0 ft)
Last Update:
11:15 am EDT Jun 1, 2025
Forecast Valid:
12pm EDT Jun 1, 2025-6pm EDT Jun 7, 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