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Significant Storm Systems Impacting Both the West and East Coasts

Heavy rain along the West Coast will increase the threat of mudslides and debris flows from wildfire burn scars in California this week. Severe thunderstorms with damaging winds and large hail, as well as a few tornadoes, may occur across the portions of the Southeast on Tues. Another Nor'easter will bring snow, strong winds, and coastal flooding to the Mid-Atlantic and Northeast through Thurs. Read More >

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73° N Lon: 81.05° W Elev: 0 ft.




Humidity 63%
Wind Speed SW 10 G 18 mph
Barometer 29.82 in (1009.9 mb)
Dewpoint 72°F (22°C)
Visibility 9.00 mi
Heat Index92°F (33°C)
Last update 20 Mar 3:53 pm EDT
Detailed forecast for

Monroe Middle Keys

Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 70s. West winds 10 to 15 mph, increasing to near 15 mph. Chance of rain 30 percent.
Mostly sunny and breezy. Highs in the upper 70s. northwest winds 15 to 20 mph.
Wednesday Night
Clear, breezy, cooler, and less humid. Lows 55 to 60. North winds 15 to 20 mph.
Sunny and breezy. Highs in the lower 70s. North winds 15 to 20 mph early, decreasing to near 15 mph.
Thursday Night
Clear and cool. Lows near 60. North winds 10 to 15 mph.
Friday Through Saturday
Clear. Highs in the mid 70s. Lows in the lower 60s.
Saturday Night Through Sunday Night
Clear. Lows in the upper 60s. Highs in the upper 70s.
Monday Through Tuesday
Partly cloudy with a slight chance of showers. Breezy. Highs near 80. Lows near 70. Chance of rain 10 percent.

Click Map For Forecast
354 PM EDT Tue Mar 20 2018

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database