Chillicothe, MO Weather & Growing Conditions
Today
91°F
Mostly Sunny
Mostly sunny, with a high near 91. Heat index values as high as 95. South wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Mostly Sunny | 5 mph S | 12% |
| Tonight | 69°F | Partly Cloudy then Chance Showers And Thunderstorms | 3 mph E | 34% |
| Wednesday | 83°F | Showers And Thunderstorms Likely | 7 mph ENE | 68% |
| Wednesday Night | 65°F | Showers And Thunderstorms Likely | 2 to 7 mph NNE | 81% |
| Thursday | 84°F | Showers And Thunderstorms then Mostly Sunny | 3 mph ENE | 81% |
| Thursday Night | 65°F | Mostly Clear | 2 mph ESE | 7% |
| Friday | 87°F | Mostly Sunny | 1 to 5 mph SSE | 13% |
| Friday Night | 68°F | Mostly Clear | 3 mph S | 13% |
| Saturday | 91°F | Sunny | 2 to 8 mph S | 13% |
| Saturday Night | 72°F | Mostly Clear | 7 mph S | 5% |
| Sunday | 93°F | Sunny | 7 to 12 mph SSW | 4% |
| Sunday Night | 73°F | Partly Cloudy | 7 to 12 mph SSW | 6% |
| Monday | 94°F | Mostly Sunny | 8 to 13 mph SSW | 6% |
| Monday Night | 74°F | Partly Cloudy | 7 to 13 mph S | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Chillicothe, MO
Last spring frost
Apr 15
First fall frost
Oct 21
Growing season
188 days
Hardiness zone
6a
Explore more for Chillicothe, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Chillicothe Agri-Sci, Mo (1.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.