Marine Weather Net

Marathon, FL Weather Forecast




Marathon, Florida

 Lat: 24.71N, Lon: 81.08W

Current Conditions Updated: 253 PM EDT SAT SEP 5 2026

Clear


Temp: 88°F
  • Humidity:
  • 67%
  • Winds:
  • 5 MPH SSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.92 in.
  • Dewpoint:
  • 76°F
  • Heat index:
  • 99°F

  • Sunrise:
  • 7:05 AM EDT
  • Sunset:
  • 7:38 PM EDT
  • Moonrise:
  • 1:05 AM EDT
  • Moonset:
  • 3:34 PM EDT

TONIGHT

CHANCE OF T-STORM
Lo: 81°F
Precip: 30%

SUNDAY

CHANCE OF T-STORM
Hi: 90°F
Lo: 81°F
Precip: 40%

LABOR DAY

CHANCE OF T-STORM
Hi: 90°F
Lo: 81°F
Precip: 30%

TUESDAY

CHANCE OF T-STORM
Hi: 90°F
Lo: 81°F
Precip: 30%
Weather Forecast In Detail:
Forecast Issued: 355 PM EDT Sat Sep 05 2026

Tonight...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Variable winds near 5 mph, becoming southeast at 5 to 10 mph. Chance of rain 30 percent.
Sunday...Partly cloudy with a chance of showers and thunderstorms. Highs near 90. Southeast to south near 5 mph, becoming variable. Chance of rain 40 percent.
Sunday Night...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Southeast to south winds 5 to 10 mph. Chance of rain 30 percent.
Labor Day...Partly cloudy with a chance of showers and thunderstorms. Highs near 90. South winds near 5 mph. Chance of rain 30 percent.
Monday Night...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Southeast winds near 5 mph. Chance of rain 40 percent.
Tuesday...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Highs near 90. Chance of rain 30 percent.
Wednesday...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Highs near 90. Chance of rain 30 percent.
Wednesday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 40 percent.
Thursday...Partly cloudy with a slight chance of showers and thunderstorms. Highs near 90. Lows in the lower 80s. Chance of rain 30 percent.
Friday...Partly cloudy with a slight chance of showers and thunderstorms. Highs near 90. Lows in the lower 80s. Chance of rain 30 percent.
Saturday...Partly cloudy with a slight chance of showers and thunderstorms. Highs near 90. Lows in the lower 80s. Chance of rain 30 percent.
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