Hartwell, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartwell, a community in Henry County, Missouri.
Tonight
48°F
Patchy Drizzle
Patchy drizzle before 4am. Mostly cloudy, with a low around 48. West wind 7 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
7-day forecast for Hartwell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Patchy Drizzle | 7 to 12 mph W | 20% |
| Wednesday | 61°F | Mostly Cloudy | 6 to 12 mph W | 3% |
| Wednesday Night | 40°F | Mostly Clear | 1 to 5 mph WSW | 1% |
| Thursday | 61°F | Mostly Sunny then Slight Chance Rain Showers | 2 to 7 mph W | 15% |
| Thursday Night | 41°F | Mostly Cloudy | 3 mph NNW | 5% |
| Friday | 59°F | Partly Sunny | 2 to 6 mph N | 1% |
| Friday Night | 38°F | Mostly Cloudy | 1 mph N | 0% |
| Saturday | 60°F | Partly Sunny | 2 mph WNW | 2% |
| Saturday Night | 37°F | Mostly Clear | 0 mph | 4% |
| Sunday | 65°F | Sunny | 0 to 5 mph WNW | 5% |
| Sunday Night | 38°F | Mostly Clear | 2 mph NW | 0% |
| Monday | 69°F | Sunny | 2 to 8 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 3 mph SW | 0% |
| Tuesday | 71°F | Sunny | 1 to 5 mph SSW | 0% |
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 Nov 4, 2026.