Marine Weather Net

Marathon, FL Weather Forecast




Marathon, Florida

 Lat: 24.71N, Lon: 81.08W

Current Conditions Updated: 253 PM EDT SUN OCT 11 2026

Clear


Temp: 88°F
  • Humidity:
  • 72%
  • Winds:
  • 7 MPH ESE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.03 in.
  • Dewpoint:
  • 78°F
  • Heat index:
  • 101°F

  • Sunrise:
  • 7:18 AM EDT
  • Sunset:
  • 7:00 PM EDT
  • Moonrise:
  • 8:11 AM EDT
  • Moonset:
  • 7:30 PM EDT

TODAY

MOSTLY SUNNY
Hi: 90°F
Lo: 81°F
Precip: 20%

COLUMBUS DAY

MOSTLY SUNNY
Hi: 90°F
Lo: 80°F
Precip: 20%

TUESDAY

MOSTLY SUNNY
Hi: 89°F
Lo: 79°F
Precip: 10%

WEDNESDAY

MOSTLY SUNNY
Hi: 89°F
Lo: 80°F
Precip: 20%
Weather Forecast In Detail:
Forecast Issued: 400 AM EDT Sun Oct 11 2026

Today...Partly cloudy early, then becoming mostly sunny. A slight chance of showers and thunderstorms. Highs near 90. Southeast winds 10 to 15 mph, becoming east and Decreasing to 5 to 10 mph. Chance of rain 20 percent.
Tonight...Mostly clear with a slight chance of showers and thunderstorms. Lows in the lower 80s. Northeast to east winds near 10 mph. Chance of rain 10 percent.
Columbus Day...Mostly sunny with a slight chance of showers and thunderstorms. Highs near 90. Northeast winds 5 to 10 mph. Chance of rain 20 percent.
Monday Night...Mostly clear with a chance of showers and a slight chance of thunderstorms. Lows near 80. North to northeast winds near 10 mph, becoming northeast and increasing to near 15 mph. Chance of rain 30 percent.
Tuesday...Mostly sunny with a slight chance of showers. Highs in the upper 80s. Northeast winds near 15 mph, Decreasing to 10 to 15 mph. Chance of rain 10 percent.
Tuesday Night...Mostly clear with a slight chance of showers. Lows in the upper 70s. Chance of rain 10 percent.
Wednesday...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20 percent.
Wednesday Night...Mostly clear with a chance of showers and thunderstorms. Lows near 80. Chance of rain 40 percent.
Thursday...Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 30 percent.
Thursday Night And Friday...Partly cloudy. A chance of showers and a slight chance of thunderstorms. Lows near 80. Highs in the upper 80s. Chance of rain 50 percent.
Friday Night...Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of thunderstorms. A chance of showers. Lows in the upper 70s. Chance of rain 40 percent.
Saturday...Partly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Chance of rain 50 percent.
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