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Marathon, OH 7-Day Night Weather Forecast
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Marathon, OH Weather Forecast
Marathon, OH Weather Forecast Date: 405 PM EDT Tue Sep 01 2026
The area/counties/county of: Clermont, including the cities of: Milford, Summerside, Mount Carmel, Mount Repose, Withamsville, Mulberry, and Day Heights.or toggle through each period.
Tonight... Clear. Unseasonably warm with lows in the lower 70s. Southwest winds around 5 mph early this evening, becoming light and variable.
Wednesday... Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 103.
Wednesday Night... Clear. Muggy and unseasonably warm. Lows in the mid 70s. Southwest winds around 5 mph in the evening, becoming light and variable.
Thursday... Mostly sunny. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 103.
Thursday Night... Partly cloudy with a slight chance of showers and thunderstorms. Muggy and unseasonably warm. Lows in the lower 70s. West winds around 5 mph in the evening, becoming light and variable. Chance of rain 20%.
Friday... Partly cloudy. Hot with highs in the lower 90s.
Friday Night... Partly cloudy. Unseasonably warm with lows around 70.
Saturday... Partly cloudy with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 40%.
Saturday Night... Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 60s. Chance of rain 40%.
Sunday... Partly cloudy in the morning, then clearing. Highs in the mid 80s.
Sunday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.
Labor Day... Partly cloudy. Highs in the mid 80s.
Monday Night... Partly cloudy. Lows in the lower 60s.
POP = Probability of Precipitation
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