Hartsburg, MO Weather & Growing Conditions
This Afternoon
97°F
Sunny
Sunny, with a high near 97. Southwest wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Sunny | 8 mph SW | 1% |
| Tonight | 71°F | Partly Cloudy | 5 mph SW | 6% |
| Sunday | 89°F | Chance Rain Showers then Partly Sunny | 1 to 5 mph W | 25% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 6 mph NE | 86% |
| Monday | 76°F | Showers And Thunderstorms | 2 to 7 mph N | 86% |
| Monday Night | 60°F | Chance Rain Showers then Mostly Cloudy | 7 mph N | 27% |
| Tuesday | 70°F | Partly Sunny | 5 to 8 mph N | 8% |
| Tuesday Night | 53°F | Partly Cloudy | 3 to 7 mph NE | 1% |
| Wednesday | 73°F | Mostly Sunny | 2 to 6 mph NE | 1% |
| Wednesday Night | 54°F | Partly Cloudy | 1 to 5 mph NE | 1% |
| Thursday | 76°F | Mostly Sunny | 1 to 5 mph NE | 6% |
| Thursday Night | 59°F | Partly Cloudy | 3 mph NE | 9% |
| Friday | 76°F | Slight Chance Rain Showers | 1 to 5 mph E | 17% |
| Friday Night | 59°F | Mostly Cloudy | 3 mph E | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hartsburg, MO
Last spring frost
Apr 7
First fall frost
Oct 29
Growing season
205 days
Hardiness zone
6b
Explore more for Hartsburg, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Columbia Rgnl Ap, Mo (8.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.