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Marathon, FL Weather Forecast
Marathon, FL Weather Forecast Date: 1015 AM EDT Mon Sep 07 2026
The area/counties/county of: Monroe Upper Keys, including: The Communities Of Key Largo, Marathon, and Key West.or toggle through each period.
This Afternoon... Partly sunny with a chance of showers and a slight chance of thunderstorms. Highs near 90. Southwest to west winds near 5 mph. Chance of rain 40%.
Tonight... Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Light and variable winds, becoming southeast around 5 mph. Chance of rain 30%.
Tuesday... Partly sunny with a chance of showers and thunderstorms. Highs near 90. East winds near 5 mph. Chance of rain 40%.
Tuesday Night... Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East winds near 5 mph. Chance of rain 30%.
Wednesday... Mostly sunny with a chance of showers and thunderstorms. Highs near 90. East winds near 5 mph. Chance of rain 30%.
Wednesday Night... Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 40%.
Thursday... Mostly cloudy with a chance of showers and thunderstorms. Highs near 90. Lows in the lower 80s. Chance of rain 30%.
Thursday Night... Mostly cloudy with a chance of showers and thunderstorms. Highs near 90. Lows in the lower 80s. Chance of rain 30%.
Friday... Partly cloudy with a chance of showers and thunderstorms. Highs near 90. Lows in the lower 80s. Chance of rain 30%.
Friday Night... Partly cloudy with a chance of showers and thunderstorms. Highs near 90. Lows in the lower 80s. Chance of rain 30%.
Saturday... Partly cloudy with a chance of showers and thunderstorms. Highs near 90. Chance of rain 40%.
Saturday Night... Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 40%.
POP = Probability of Precipitation
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