Weather World
City of Chillicothe, OHChillicothe, OH 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Chillicothe, OH Weather Forecast
Chillicothe, OH Weather Forecast Date: 843 AM EDT Fri Sep 04 2026
The area/counties/county of: Ross, including the city of Chillicothe.or toggle through each period.
Rest of Today... Mostly sunny, then becoming partly cloudy early this afternoon, then becoming mostly sunny. A slight chance of showers and thunderstorms this afternoon. Hot with highs in the lower 90s. West winds around 5 mph. Chance of rain 20%. Heat index values up to 103.
Tonight... Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Muggy and unseasonably warm. Lows in the lower 70s. West winds around 5 mph. Chance of rain 30%.
Saturday... Partly cloudy with a chance of showers and thunderstorms. Humid with highs in the upper 80s. Northwest winds 5 to 10 mph. Chance of rain 50%.
Saturday Night... Partly cloudy. Showers likely with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Muggy. Lows in the mid 60s. North winds around 5 mph. Chance of rain 20%.
Sunday... Mostly sunny. Highs in the lower 80s. Northeast winds 5 to 10 mph.
Sunday Night... Mostly clear. Lows in the upper 50s.
Labor Day... Mostly sunny. Highs in the lower 80s.
Monday Night... Mostly clear. Lows in the lower 60s.
Tuesday... Partly cloudy. Highs in the upper 80s.
Tuesday Night... Partly cloudy. Unseasonably warm with lows in the upper 60s.
Wednesday... Mostly sunny. Hot with highs in the lower 90s.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. Unseasonably warm with lows in the lower 70s.
POP = Probability of Precipitation
Chillicothe Radar Loop
Use the map search tool if you want to place a location marker on the radar map...