Marine Weather Net

Marathon, FL Weather Forecast




Marathon, Florida

 Lat: 24.71N, Lon: 81.08W

Current Conditions Updated: 653 AM EDT TUE SEP 1 2026

Clear


Temp: 82°F
  • Humidity:
  • 84%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.96 in.
  • Dewpoint:
  • 77°F
  • Heat index:
  • 90°F

  • Sunrise:
  • 7:03 AM EDT
  • Sunset:
  • 7:42 PM EDT
  • Moonrise:
  • 10:28 PM EDT
  • Moonset:
  • 11:15 AM EDT

TODAY

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

WEDNESDAY

CHANCE OF T-STORM
Hi: 90°F
Lo: 81°F
Precip: 50%

THURSDAY

CHANCE OF T-STORM
Hi: 90°F
Lo: 81°F
Precip: 60%

FRIDAY

PARTLY SUNNY
Hi: 90°F
Lo: 81°F
Precip: 30%
Weather Forecast In Detail:
Forecast Issued: 400 AM EDT Tue Sep 01 2026

Today...Partly cloudy with a chance of showers and thunderstorms. Highs near 90. East to southeast winds near 5 mph. Chance of rain 30 percent.
Tonight...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East to southeast winds near 5 mph. Chance of rain 30 percent.
Wednesday...Partly cloudy with a chance of showers and thunderstorms. Highs near 90. East winds near 5 mph. Chance of rain 50 percent.
Wednesday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East winds near 5 mph. Chance of rain 40 percent.
Thursday...Showers likely with a chance of thunderstorms. Highs near 90. East winds near 5 mph. Chance of rain 60 percent.
Thursday Night...Showers likely with a chance of thunderstorms. Lows in the lower 80s. Chance of rain 60 percent.
Friday...Partly sunny with a chance of showers and thunderstorms. Highs near 90. Chance of rain 30 percent.
Friday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 40 percent.
Saturday...Mostly sunny with a chance of showers and thunderstorms. Highs near 90. Chance of rain 50 percent.
Saturday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 30 percent.
Sunday...Mostly sunny with a chance of showers and thunderstorms. Highs near 90. Chance of rain 30 percent.
Sunday Night...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 50 percent.
Labor Day...Mostly sunny with a chance of showers and thunderstorms. Highs near 90. Chance of rain 50 percent.
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