Record Warmth Lingers; Fire Weather Concerns; Unsettled Pacific Northwest

More record warm temperatures are forecast this week from California, Southwest, Plains then into the Mississippi Valley and Southeast. The warmth combining with dry conditions may result in elevated to locally critical fire weather conditions. Meanwhile, another Pacific system will move across the Pacific Northwest with lower elevation rain and mountain snows. For Hawaii, conditions improving. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

70°F

21°C

Humidity 68%
Wind Speed E 3 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 23 Mar 1:53 am EDT
Extended Forecast for

Marathon Shores FL

  • Overnight

    Overnight: Mostly clear, with a low around 68. Northeast wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. Northeast wind around 5 mph becoming calm  in the morning.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. North wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. North wind around 5 mph becoming calm  in the morning.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69. Northeast wind around 5 mph.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 68. Northeast wind around 5 mph.
Monday
Sunny, with a high near 79. Northeast wind around 5 mph becoming calm in the morning.
Monday Night
Mostly clear, with a low around 68. North wind around 5 mph.
Tuesday
Sunny, with a high near 79. North wind around 5 mph becoming calm in the morning.
Tuesday Night
Partly cloudy, with a low around 69. Northeast wind around 5 mph.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 79.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 10%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Marathon Shores FL
 24.74°N 81.04°W (Elev. 0 ft)
2:15 am EDT Mar 23, 2026
2am EDT Mar 23, 2026-6pm EDT Mar 29, 2026
 
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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