Marine Weather Net

Marathon, FL Weather Forecast




Marathon, Florida

 Lat: 24.71N, Lon: 81.08W

Current Conditions Updated: 353 PM EST WED FEB 18 2026

Clear


Temp: 76°F
  • Humidity:
  • 71%
  • Winds:
  • 8 MPH SE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.04 in.
  • Dewpoint:
  • 66°F
  • Heat index:
  • 77°F

  • Sunrise:
  • 6:56 AM EST
  • Sunset:
  • 6:18 PM EST
  • Moonrise:
  • 7:38 AM EST
  • Moonset:
  • 7:41 PM EST

TONIGHT

PARTLY CLOUDY
Lo: 71°F

THURSDAY

MOSTLY SUNNY
Hi: 81°F
Lo: 71°F

FRIDAY

MOSTLY SUNNY
Hi: 81°F
Lo: 71°F

SUNDAY

MOSTLY SUNNY
Hi: 81°F
Lo: 61°F
Precip: 10%
Weather Forecast In Detail:
Forecast Issued: 350 PM EST Wed Feb 18 2026

Tonight...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. East to southeast winds 5 to 10 mph, becoming southeast.
Thursday...Partly cloudy early, then becoming mostly sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph.
Thursday Night...Mostly clear. Lows in the lower 70s. Southeast winds 5 to 10 mph.
Friday...Mostly sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph, Decreasing to near 5 mph.
Friday Night...Mostly clear. Lows in the lower 70s. Southeast winds 5 to 10 mph.
Saturday And Saturday Night...Mostly clear. Highs in the lower 80s. Lows in the lower 70s.
Sunday...Mostly sunny with a slight chance of showers. Highs in the lower 80s. Chance of rain 10 percent.
Sunday Night...Partly cloudy with a slight chance of showers. Becoming windy. Cooler. Lows in the lower 60s. Chance of rain 10 percent.
Monday...Mostly sunny. Windy, becoming breezy. Highs in the upper 60s.
Monday Night...Mostly clear. Lows in the upper 50s. Highs in the upper 60s.
Tuesday...Mostly clear. Lows in the upper 50s. Highs in the upper 60s.
Monday Night...Mostly clear and breezy. Cold. Lows in the mid 50s, except near 50 for the upper keys.
Tuesday...Mostly sunny. Breezy in the morning. Highs in the upper 60s.
Tuesday Night...Mostly clear. Lows in the upper 50s.
Wednesday...Mostly sunny. Highs in the mid 70s.
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