Hartwell, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartwell, a community in Henry County, Missouri.
Today
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 100. Southwest wind around 12 mph, with gusts as high as 21 mph.
7-day forecast for Hartwell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 12 mph SW | 1% |
| Tonight | 70°F | Chance Showers And Thunderstorms | 1 to 8 mph WSW | 50% |
| Sunday | 88°F | Chance Showers And Thunderstorms | 1 to 5 mph NW | 49% |
| Sunday Night | 65°F | Showers And Thunderstorms | 5 mph NNE | 82% |
| Monday | 76°F | Showers And Thunderstorms | 3 to 9 mph NNE | 82% |
| Monday Night | 57°F | Mostly Cloudy | 3 to 9 mph NNE | 9% |
| Tuesday | 72°F | Partly Sunny | 8 mph NNE | 3% |
| Tuesday Night | 52°F | Partly Cloudy | 2 to 7 mph NE | 1% |
| Wednesday | 75°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 54°F | Partly Cloudy | 3 mph ENE | 2% |
| Thursday | 78°F | Mostly Sunny | 3 mph ENE | 10% |
| Thursday Night | 59°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph ENE | 15% |
| Friday | 78°F | Slight Chance Rain Showers | 1 to 5 mph E | 21% |
| Friday Night | 60°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph E | 16% |
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.