Hartwell, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartwell, a community in Henry County, Missouri.
This Afternoon
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 101. South southwest wind around 8 mph.
7-day forecast for Hartwell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 8 mph SSW | 3% |
| Tonight | 75°F | Mostly Clear | 2 to 6 mph SSW | 3% |
| Saturday | 99°F | Mostly Sunny | 6 to 13 mph SSW | 2% |
| Saturday Night | 71°F | Mostly Cloudy then Chance Showers And Thunderstorms | 2 to 8 mph SW | 45% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 1 to 5 mph W | 46% |
| Sunday Night | 65°F | Showers And Thunderstorms Likely | 5 mph NNE | 71% |
| Monday | 78°F | Showers And Thunderstorms Likely | 3 to 8 mph N | 71% |
| Monday Night | 58°F | Mostly Cloudy | 3 to 8 mph NNE | 13% |
| Tuesday | 73°F | Partly Sunny | 8 mph NNE | 4% |
| Tuesday Night | 53°F | Mostly Cloudy | 2 to 7 mph NNE | 2% |
| Wednesday | 76°F | Mostly Sunny | 2 to 6 mph NE | 1% |
| Wednesday Night | 55°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Thursday | 78°F | Mostly Sunny | 3 mph ENE | 8% |
| Thursday Night | 58°F | Mostly Cloudy | 2 mph ENE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Hartwell (38.431, -93.934). Updated through the day.
Growing snapshot for Hartwell
Last spring frost
Apr 17
First fall frost
Oct 21
Growing season
187 days
Hardiness zone
6b
More local growing data for Hartwell: nearby ZIP 64788 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Clinton, Mo (13.6 mi from Hartwell). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.