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Marathon, FL Weather Forecast
Marathon, FL Weather Forecast Date: 404 PM EDT Tue Oct 27 2026
The area/counties/county of: Monroe Upper Keys, including: The Communities Of Key Largo, Marathon, and Key West.or toggle through each period.
Tonight... Partly cloudy with a chance of showers and a slight chance of thunderstorms. Windy, becoming breezy. Lows in the mid to upper 70s. North to northeast winds near 20 mph, Decreasing to 15 to 20 mph. Chance of rain 30%.
Wednesday... Partly cloudy with a chance of showers and a slight chance of thunderstorms. Highs in the lower 80s. North to northeast winds 10 to 15 mph, variable near 5 mph. Chance of rain 40%.
Wednesday Night... Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the mid to upper 70s. Variable winds near 5 mph, becoming east to southeast. Chance of rain 30%.
Thursday... Partly cloudy with a slight chance of showers. Highs in the mid 80s. East to southeast winds near 5 mph. Chance of rain 20%.
Thursday Night... Partly cloudy with a slight chance of showers. Lows in the mid to upper 70s. Northeast to east winds near 5 mph. Chance of rain 10%.
Friday... Mostly clear with a slight chance of showers. Highs in the mid 80s. Lows in the upper 70s. Chance of rain 20%.
Friday Night... Mostly clear with a slight chance of showers. Highs in the mid 80s. Lows in the upper 70s. Chance of rain 20%.
POP = Probability of Precipitation
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