Green Castle, MO Weather & Growing Conditions
Overnight
72°F
Partly Cloudy
Partly cloudy, with a low around 72. South southwest wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Partly Cloudy | 7 mph SSW | 3% |
| Saturday | 87°F | Partly Sunny | 7 to 10 mph SSW | 4% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph WNW | 64% |
| Sunday | 73°F | Chance Showers And Thunderstorms | 3 to 12 mph NNE | 52% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 12 mph NE | 66% |
| Monday | 63°F | Showers And Thunderstorms Likely | 13 mph NE | 66% |
| Monday Night | 53°F | Chance Rain Showers | 8 to 12 mph NE | 27% |
| Tuesday | 61°F | Mostly Cloudy | 10 mph NE | 10% |
| Tuesday Night | 47°F | Partly Cloudy | 3 to 8 mph NE | 4% |
| Wednesday | 65°F | Mostly Sunny | 7 mph NE | 2% |
| Wednesday Night | 51°F | Partly Cloudy | 1 to 5 mph NE | 3% |
| Thursday | 68°F | Partly Sunny | 5 mph ENE | 9% |
| Thursday Night | 55°F | Mostly Cloudy | 3 mph ENE | 12% |
| Friday | 70°F | Partly Sunny | 2 to 6 mph E | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Green Castle, MO
Last spring frost
Apr 26
First fall frost
Oct 14
Growing season
169 days
Hardiness zone
6a
Explore more for Green Castle, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Green City 5N, Mo (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.