Chillicothe, OH Weather & Growing Conditions
This Afternoon
80°F
Mostly Cloudy
Mostly cloudy, with a high near 80. North wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Mostly Cloudy | 7 mph N | 4% |
| Tonight | 58°F | Partly Cloudy then Patchy Fog | 1 to 6 mph N | 2% |
| Saturday | 83°F | Areas Of Fog then Mostly Sunny | 3 mph E | 10% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely | 3 mph S | 58% |
| Sunday | 84°F | Showers And Thunderstorms Likely | 2 to 6 mph SW | 63% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 6 mph N | 63% |
| Monday | 76°F | Chance Rain Showers | 5 to 8 mph NE | 41% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 5 to 8 mph NE | 51% |
| Tuesday | 74°F | Chance Showers And Thunderstorms | 8 mph NE | 51% |
| Tuesday Night | 60°F | Showers And Thunderstorms Likely | 5 to 9 mph NE | 59% |
| Wednesday | 73°F | Rain Showers Likely | 8 mph NE | 59% |
| Wednesday Night | 56°F | Showers And Thunderstorms Likely | 3 to 7 mph NE | 55% |
| Thursday | 73°F | Slight Chance Rain Showers | 6 mph N | 18% |
| Thursday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 6 mph N | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Chillicothe, OH
Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
184 days
Hardiness zone
6b
Explore more for Chillicothe, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Chillicothe Mound City, Oh (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.