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Marathon, OH Weather Tomorrow

Get tomorrow's weather for Marathon plus an extended 5 day forecast providing precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the Marathon area and around Clermont county, Ohio.
Updated: Thu Sep 24th 2026 2:45 AM EDT
Marathon, OH Weather – 9-24 – Scattered Showers
68° / 56°
Scattered Showers
On and off showers are set to occur in Marathon, with a high of 68°F and a low of 56°F. There's a moderate 49% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 15mph on average and gusts of 24.7mph at 6 AM. High humidity with average of 82% is anticipated, the maximum being 95% at 3 AM and 62% being its lowest at 2 PM. Barometric pressure is its highest of 30.26inHg at 10 AM, a lowest point of 30.19inHg at 3 AM with an avg 30.23inHg.
Marathon, OH Weather – 9-25 – Sunny
69° / 49°

Weather Tomorrow

Sunny
Marathon may see a sunny day, with daytime highs of 69°F and overnight lows near 49°F. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 11mph on average and gusts of 19.5mph at 1 AM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 93% at 12 AM and 27% being its lowest at 3 PM. Barometric pressure is its highest of 30.27inHg at 8 AM, a lowest point of 30.15inHg at 5 PM with an avg 30.21inHg.
Marathon, OH Weather – 9-26 – Overcast
71° / 51°
Overcast
Marathon could see overcast with daytime highs of 71°F and nighttime lows near 51°F. There's a very small chance of rainfall, only about 7%. Winds will be light at 9mph and gusts of 18.1mph at 4 PM. Humidity levels should be comfortable, sitting around 56% on average, the maximum being 84% at 7 AM and 30% being its lowest at 5 PM. Barometric pressure is its highest of 30.19inHg at 1 AM, a lowest point of 30.08inHg at 5 PM with an avg 30.15inHg.
Marathon, OH Weather – 9-27 – Sunny
72° / 51°
Sunny
In Marathon, a sunny day is likely with a high near 72°F and a low around 51°F. There's a very small chance of rainfall, only about 4%. Winds will be light at 8mph and gusts of 18.6mph at 5 PM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 90% at 7 AM and 28% being its lowest at 3 PM. Barometric pressure is its highest of 30.13inHg at 12 AM, a lowest point of 30.01inHg at 5 PM with an avg 30.08inHg.
Marathon, OH Weather – 9-28 – Sunny
74° / 53°
Sunny
Highs will reach 74°F with lows near 53°F in Marathon, where a sunny day is. There's a very small chance of rainfall, only about 6%. Winds will be light at 7mph and gusts of 16.8mph at 5 PM. The humidity will be on the higher side, averaging about 62%, the maximum being 87% at 7 AM and 37% being its lowest at 5 PM. Barometric pressure is its highest of 30.09inHg at 8 AM, a lowest point of 29.98inHg at 5 PM with an avg 30.04inHg.
Marathon, OH Weather – 9-29 – Sunny
81° / 56°
Sunny
Marathon is set for sunshine with temperatures peaking at 81°F and dipping to 56°F. There's a very small chance of rainfall, only about 3%. Winds will be light at 9mph and gusts of 13.2mph at 11 PM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 87% at 7 AM and 23% being its lowest at 5 PM. Barometric pressure is its highest of 30.07inHg at 11 AM, a lowest point of 29.92inHg at 5 PM with an avg 30.01inHg.

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